diff --git a/sql/mysql/ops_device_trajectory.sql b/sql/mysql/ops_device_trajectory.sql
new file mode 100644
index 0000000..b080b7b
--- /dev/null
+++ b/sql/mysql/ops_device_trajectory.sql
@@ -0,0 +1,37 @@
+-- =============================================
+-- 设备轨迹记录表
+-- 记录工牌设备进出各区域的轨迹（进入时创建，离开时更新）
+-- =============================================
+
+CREATE TABLE IF NOT EXISTS `ops_device_trajectory` (
+    `id`                BIGINT       NOT NULL AUTO_INCREMENT COMMENT '主键',
+    `device_id`         BIGINT       NOT NULL COMMENT '工牌设备ID',
+    `device_name`       VARCHAR(64)  DEFAULT NULL COMMENT '设备名称(冗余)',
+    `nickname`          VARCHAR(64)  DEFAULT NULL COMMENT '设备备注名称(冗余)',
+    `person_id`         BIGINT       DEFAULT NULL COMMENT '人员ID(预留)',
+    `person_name`       VARCHAR(64)  DEFAULT NULL COMMENT '人员名称(预留)',
+    `area_id`           BIGINT       NOT NULL COMMENT '区域ID',
+    `area_name`         VARCHAR(128) DEFAULT NULL COMMENT '区域名称(冗余)',
+    `beacon_mac`        VARCHAR(64)  DEFAULT NULL COMMENT '匹配的Beacon MAC',
+    `enter_time`        DATETIME     NOT NULL COMMENT '进入时间',
+    `leave_time`        DATETIME     DEFAULT NULL COMMENT '离开时间',
+    `duration_seconds`  INT          DEFAULT NULL COMMENT '停留时长(秒)',
+    `leave_reason`      VARCHAR(32)  DEFAULT NULL COMMENT '离开原因: SIGNAL_LOSS/AREA_SWITCH/DEVICE_OFFLINE',
+    `enter_rssi`        INT          DEFAULT NULL COMMENT '进入时RSSI',
+    `tenant_id`         BIGINT       NOT NULL DEFAULT 0 COMMENT '租户ID',
+    `creator`           VARCHAR(64)  DEFAULT '' COMMENT '创建者',
+    `create_time`       DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
+    `updater`           VARCHAR(64)  DEFAULT '' COMMENT '更新者',
+    `update_time`       DATETIME     NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
+    `deleted`           BIT(1)       NOT NULL DEFAULT b'0' COMMENT '是否删除',
+    PRIMARY KEY (`id`),
+    INDEX `idx_device_enter` (`device_id`, `enter_time`),
+    INDEX `idx_area_enter` (`area_id`, `enter_time`),
+    INDEX `idx_device_area` (`device_id`, `area_id`),
+    INDEX `idx_tenant` (`tenant_id`),
+    INDEX `idx_device_area_leave` (`device_id`, `area_id`, `leave_time`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='设备轨迹记录';
+
+-- 优化：为 selectOpenRecord 查询（device_id + area_id + leave_time IS NULL）添加索引
+-- 注：已有数据的线上环境需单独执行以下 ALTER（如数据量大请在低峰期执行）：
+-- ALTER TABLE `ops_device_trajectory` ADD INDEX `idx_device_area_leave` (`device_id`, `area_id`, `leave_time`);
diff --git a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/TrajectoryEnterEventHandler.java b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/TrajectoryEnterEventHandler.java
new file mode 100644
index 0000000..a1363db
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/TrajectoryEnterEventHandler.java
@@ -0,0 +1,89 @@
+package com.viewsh.module.ops.environment.integration.consumer;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.viewsh.module.ops.environment.integration.dto.TrajectoryEnterEventDTO;
+import com.viewsh.module.ops.environment.service.trajectory.DeviceTrajectoryService;
+import jakarta.annotation.Resource;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.rocketmq.spring.annotation.ConsumeMode;
+import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
+import org.apache.rocketmq.spring.core.RocketMQListener;
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+
+/**
+ * 轨迹进入区域事件消费者
+ * <p>
+ * 订阅 IoT 模块发布的轨迹进入事件，创建轨迹记录
+ *
+ * @author lzh
+ */
+@Slf4j
+@Component
+@RocketMQMessageListener(
+        topic = "trajectory-enter",
+        consumerGroup = "ops-trajectory-enter-group",
+        consumeMode = ConsumeMode.CONCURRENTLY,
+        selectorExpression = "*",
+        accessKey = "${rocketmq.consumer.access-key:}",
+        secretKey = "${rocketmq.consumer.secret-key:}"
+)
+public class TrajectoryEnterEventHandler implements RocketMQListener<String> {
+
+    @Resource
+    private ObjectMapper objectMapper;
+
+    @Resource
+    private IntegrationEventDeduplicationService deduplicationService;
+
+    @Resource
+    private DeviceTrajectoryService trajectoryService;
+
+    @Override
+    public void onMessage(String message) {
+        try {
+            TrajectoryEnterEventDTO event = objectMapper.readValue(message, TrajectoryEnterEventDTO.class);
+
+            // 幂等性检查
+            if (!deduplicationService.tryConsume(event.getEventId())) {
+                log.debug("[TrajectoryEnterHandler] 重复消息，跳过：eventId={}", event.getEventId());
+                return;
+            }
+
+            log.info("[TrajectoryEnterHandler] 收到进入事件：eventId={}, deviceId={}, areaId={}",
+                    event.getEventId(), event.getDeviceId(), event.getAreaId());
+
+            // 解析事件时间
+            LocalDateTime enterTime = parseEventTime(event.getEventTime());
+
+            // 创建轨迹记录
+            trajectoryService.recordEnter(
+                    event.getDeviceId(),
+                    event.getDeviceName(),
+                    event.getNickname(),
+                    event.getAreaId(),
+                    event.getBeaconMac(),
+                    event.getEnterRssi(),
+                    enterTime);
+
+        } catch (Exception e) {
+            log.error("[TrajectoryEnterHandler] 消息处理失败：message={}", message, e);
+            throw new RuntimeException("轨迹进入事件处理失败", e);
+        }
+    }
+
+    private LocalDateTime parseEventTime(String eventTime) {
+        if (eventTime == null || eventTime.isEmpty()) {
+            return LocalDateTime.now();
+        }
+        try {
+            return LocalDateTime.parse(eventTime, DateTimeFormatter.ISO_LOCAL_DATE_TIME);
+        } catch (DateTimeParseException e) {
+            log.warn("[TrajectoryEnterHandler] 事件时间解析失败，使用当前时间：eventTime={}", eventTime, e);
+            return LocalDateTime.now();
+        }
+    }
+}
diff --git a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/TrajectoryLeaveEventHandler.java b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/TrajectoryLeaveEventHandler.java
new file mode 100644
index 0000000..6499c88
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/TrajectoryLeaveEventHandler.java
@@ -0,0 +1,87 @@
+package com.viewsh.module.ops.environment.integration.consumer;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.viewsh.module.ops.environment.integration.dto.TrajectoryLeaveEventDTO;
+import com.viewsh.module.ops.environment.service.trajectory.DeviceTrajectoryService;
+import jakarta.annotation.Resource;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.rocketmq.spring.annotation.ConsumeMode;
+import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
+import org.apache.rocketmq.spring.core.RocketMQListener;
+import org.springframework.stereotype.Component;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.format.DateTimeParseException;
+
+/**
+ * 轨迹离开区域事件消费者
+ * <p>
+ * 订阅 IoT 模块发布的轨迹离开事件，更新轨迹记录的离开信息
+ *
+ * @author lzh
+ */
+@Slf4j
+@Component
+@RocketMQMessageListener(
+        topic = "trajectory-leave",
+        consumerGroup = "ops-trajectory-leave-group",
+        consumeMode = ConsumeMode.CONCURRENTLY,
+        selectorExpression = "*",
+        accessKey = "${rocketmq.consumer.access-key:}",
+        secretKey = "${rocketmq.consumer.secret-key:}"
+)
+public class TrajectoryLeaveEventHandler implements RocketMQListener<String> {
+
+    @Resource
+    private ObjectMapper objectMapper;
+
+    @Resource
+    private IntegrationEventDeduplicationService deduplicationService;
+
+    @Resource
+    private DeviceTrajectoryService trajectoryService;
+
+    @Override
+    public void onMessage(String message) {
+        try {
+            TrajectoryLeaveEventDTO event = objectMapper.readValue(message, TrajectoryLeaveEventDTO.class);
+
+            // 幂等性检查
+            if (!deduplicationService.tryConsume(event.getEventId())) {
+                log.debug("[TrajectoryLeaveHandler] 重复消息，跳过：eventId={}", event.getEventId());
+                return;
+            }
+
+            log.info("[TrajectoryLeaveHandler] 收到离开事件：eventId={}, deviceId={}, areaId={}, reason={}",
+                    event.getEventId(), event.getDeviceId(), event.getAreaId(), event.getLeaveReason());
+
+            // 解析事件时间
+            LocalDateTime leaveTime = parseEventTime(event.getEventTime());
+
+            // 更新轨迹记录
+            trajectoryService.recordLeave(
+                    event.getDeviceId(),
+                    event.getAreaId(),
+                    event.getLeaveReason(),
+                    event.getEnterTimestamp(),
+                    leaveTime);
+
+        } catch (Exception e) {
+            log.error("[TrajectoryLeaveHandler] 消息处理失败：message={}", message, e);
+            throw new RuntimeException("轨迹离开事件处理失败", e);
+        }
+    }
+
+    private LocalDateTime parseEventTime(String eventTime) {
+        if (eventTime == null || eventTime.isEmpty()) {
+            return LocalDateTime.now();
+        }
+        try {
+            return LocalDateTime.parse(eventTime, DateTimeFormatter.ISO_LOCAL_DATE_TIME);
+        } catch (DateTimeParseException e) {
+            log.warn("[TrajectoryLeaveHandler] 事件时间解析失败，使用当前时间：eventTime={}", eventTime, e);
+            return LocalDateTime.now();
+        }
+    }
+}
diff --git a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/dto/TrajectoryEnterEventDTO.java b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/dto/TrajectoryEnterEventDTO.java
new file mode 100644
index 0000000..26ada6f
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/dto/TrajectoryEnterEventDTO.java
@@ -0,0 +1,65 @@
+package com.viewsh.module.ops.environment.integration.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * 轨迹进入区域事件 DTO
+ * <p>
+ * 由 IoT 模块发布，Ops 模块消费
+ *
+ * @author lzh
+ */
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class TrajectoryEnterEventDTO {
+
+    /**
+     * 事件ID（UUID，用于幂等性控制）
+     */
+    private String eventId;
+
+    /**
+     * 设备ID（工牌）
+     */
+    private Long deviceId;
+
+    /**
+     * 设备名称
+     */
+    private String deviceName;
+
+    /**
+     * 设备备注名称
+     */
+    private String nickname;
+
+    /**
+     * 区域ID
+     */
+    private Long areaId;
+
+    /**
+     * 匹配的 Beacon MAC 地址
+     */
+    private String beaconMac;
+
+    /**
+     * 进入时的 RSSI 值
+     */
+    private Integer enterRssi;
+
+    /**
+     * 事件时间（ISO 格式）
+     */
+    private String eventTime;
+
+    /**
+     * 租户ID
+     */
+    private Long tenantId;
+}
diff --git a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/dto/TrajectoryLeaveEventDTO.java b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/dto/TrajectoryLeaveEventDTO.java
new file mode 100644
index 0000000..76fb87c
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/dto/TrajectoryLeaveEventDTO.java
@@ -0,0 +1,72 @@
+package com.viewsh.module.ops.environment.integration.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * 轨迹离开区域事件 DTO
+ * <p>
+ * 由 IoT 模块发布，Ops 模块消费
+ *
+ * @author lzh
+ */
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class TrajectoryLeaveEventDTO {
+
+    /**
+     * 事件ID（UUID，用于幂等性控制）
+     */
+    private String eventId;
+
+    /**
+     * 设备ID（工牌）
+     */
+    private Long deviceId;
+
+    /**
+     * 设备名称
+     */
+    private String deviceName;
+
+    /**
+     * 设备备注名称
+     */
+    private String nickname;
+
+    /**
+     * 区域ID
+     */
+    private Long areaId;
+
+    /**
+     * 匹配的 Beacon MAC 地址
+     */
+    private String beaconMac;
+
+    /**
+     * 离开原因
+     * <p>
+     * SIGNAL_LOSS / AREA_SWITCH / DEVICE_OFFLINE
+     */
+    private String leaveReason;
+
+    /**
+     * 进入时间戳（毫秒），用于匹配轨迹记录
+     */
+    private Long enterTimestamp;
+
+    /**
+     * 事件时间（ISO 格式）
+     */
+    private String eventTime;
+
+    /**
+     * 租户ID
+     */
+    private Long tenantId;
+}
diff --git a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/service/trajectory/DeviceTrajectoryService.java b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/service/trajectory/DeviceTrajectoryService.java
new file mode 100644
index 0000000..ca011c2
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/service/trajectory/DeviceTrajectoryService.java
@@ -0,0 +1,65 @@
+package com.viewsh.module.ops.environment.service.trajectory;
+
+import com.viewsh.framework.common.pojo.PageResult;
+import com.viewsh.module.ops.service.trajectory.dto.TrajectoryPageReqDTO;
+import com.viewsh.module.ops.service.trajectory.dto.TrajectoryRespDTO;
+import com.viewsh.module.ops.service.trajectory.dto.TrajectorySummaryDTO;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * 设备轨迹服务
+ * <p>
+ * 负责轨迹记录的创建和更新
+ *
+ * @author lzh
+ */
+public interface DeviceTrajectoryService {
+
+    /**
+     * 记录设备进入区域
+     *
+     * @param deviceId    设备ID
+     * @param deviceName  设备名称
+     * @param nickname    设备备注名称
+     * @param areaId      区域ID
+     * @param beaconMac   Beacon MAC
+     * @param enterRssi   进入时 RSSI
+     * @param enterTime   进入时间
+     */
+    void recordEnter(Long deviceId, String deviceName, String nickname, Long areaId,
+                     String beaconMac, Integer enterRssi, LocalDateTime enterTime);
+
+    /**
+     * 记录设备离开区域
+     *
+     * @param deviceId       设备ID
+     * @param areaId         区域ID
+     * @param leaveReason    离开原因
+     * @param enterTimestamp 进入时间戳（毫秒），用于匹配记录
+     * @param leaveTime      离开时间
+     */
+    void recordLeave(Long deviceId, Long areaId, String leaveReason,
+                     Long enterTimestamp, LocalDateTime leaveTime);
+
+    /**
+     * 分页查询轨迹记录
+     */
+    PageResult<TrajectoryRespDTO> getTrajectoryPage(TrajectoryPageReqDTO req);
+
+    /**
+     * 查询某设备某天的轨迹时间线
+     */
+    List<TrajectoryRespDTO> getTimeline(Long deviceId, LocalDate date);
+
+    /**
+     * 查询轨迹统计摘要
+     *
+     * @param deviceId 设备ID（必填）
+     * @param date     日期（必填）
+     */
+    TrajectorySummaryDTO getSummary(Long deviceId, LocalDate date);
+
+}
diff --git a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/service/trajectory/DeviceTrajectoryServiceImpl.java b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/service/trajectory/DeviceTrajectoryServiceImpl.java
new file mode 100644
index 0000000..fa86141
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/service/trajectory/DeviceTrajectoryServiceImpl.java
@@ -0,0 +1,284 @@
+package com.viewsh.module.ops.environment.service.trajectory;
+
+import com.viewsh.framework.common.pojo.PageResult;
+import com.viewsh.framework.common.util.object.BeanUtils;
+import com.viewsh.module.ops.dal.dataobject.area.OpsBusAreaDO;
+import com.viewsh.module.ops.dal.dataobject.trajectory.OpsDeviceTrajectoryDO;
+import com.viewsh.module.ops.dal.mysql.area.OpsBusAreaMapper;
+import com.viewsh.module.ops.dal.mysql.trajectory.OpsDeviceTrajectoryMapper;
+import com.viewsh.module.ops.service.trajectory.dto.TrajectoryPageReqDTO;
+import com.viewsh.module.ops.service.trajectory.dto.TrajectoryRespDTO;
+import com.viewsh.module.ops.service.trajectory.dto.TrajectorySummaryDTO;
+import jakarta.annotation.Resource;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
+import java.util.*;
+import java.util.stream.Collectors;
+
+/**
+ * 设备轨迹服务实现
+ *
+ * @author lzh
+ */
+@Slf4j
+@Service
+public class DeviceTrajectoryServiceImpl implements DeviceTrajectoryService {
+
+    @Resource
+    private OpsDeviceTrajectoryMapper trajectoryMapper;
+
+    @Resource
+    private OpsBusAreaMapper areaMapper;
+
+    // ==================== 写入方法 ====================
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void recordEnter(Long deviceId, String deviceName, String nickname, Long areaId,
+                            String beaconMac, Integer enterRssi, LocalDateTime enterTime) {
+        // 使用 SELECT ... FOR UPDATE 防止并发创建重复记录
+        OpsDeviceTrajectoryDO openRecord = trajectoryMapper.selectOpenRecordForUpdate(deviceId, areaId);
+        if (openRecord != null) {
+            log.warn("[Trajectory] 设备已有未关闭的轨迹记录，跳过创建：deviceId={}, areaId={}, existingId={}",
+                    deviceId, areaId, openRecord.getId());
+            return;
+        }
+
+        OpsDeviceTrajectoryDO record = OpsDeviceTrajectoryDO.builder()
+                .deviceId(deviceId)
+                .deviceName(deviceName)
+                .nickname(nickname)
+                .areaId(areaId)
+                .beaconMac(beaconMac)
+                .enterRssi(enterRssi)
+                .enterTime(enterTime)
+                .build();
+
+        // 填充区域名称冗余字段
+        fillAreaName(record);
+
+        trajectoryMapper.insert(record);
+        log.info("[Trajectory] 创建轨迹记录：id={}, deviceId={}, areaId={}, enterTime={}",
+                record.getId(), deviceId, areaId, enterTime);
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void recordLeave(Long deviceId, Long areaId, String leaveReason,
+                            Long enterTimestamp, LocalDateTime leaveTime) {
+        // 优先使用 enterTimestamp 精确匹配，避免关闭错误的记录
+        OpsDeviceTrajectoryDO record = null;
+        if (enterTimestamp != null) {
+            LocalDateTime enterTime = LocalDateTime.ofInstant(
+                    Instant.ofEpochMilli(enterTimestamp), ZoneId.systemDefault());
+            record = trajectoryMapper.selectOpenRecordByEnterTimeForUpdate(deviceId, areaId, enterTime);
+        }
+        // 降级：按 deviceId + areaId 查询最近的未关闭记录
+        if (record == null) {
+            record = trajectoryMapper.selectOpenRecordForUpdate(deviceId, areaId);
+        }
+        if (record == null) {
+            log.warn("[Trajectory] 未找到匹配的轨迹记录，跳过更新：deviceId={}, areaId={}, enterTimestamp={}",
+                    deviceId, areaId, enterTimestamp);
+            return;
+        }
+
+        int durationSeconds = 0;
+        if (record.getEnterTime() != null && leaveTime != null) {
+            durationSeconds = (int) Duration.between(record.getEnterTime(), leaveTime).getSeconds();
+            if (durationSeconds < 0) {
+                durationSeconds = 0;
+            }
+        }
+
+        record.setLeaveTime(leaveTime);
+        record.setDurationSeconds(durationSeconds);
+        record.setLeaveReason(leaveReason);
+
+        trajectoryMapper.updateById(record);
+        log.info("[Trajectory] 更新轨迹记录（离开）：id={}, deviceId={}, areaId={}, duration={}s, reason={}",
+                record.getId(), deviceId, areaId, durationSeconds, leaveReason);
+    }
+
+    // ==================== 查询方法 ====================
+
+    @Override
+    public PageResult<TrajectoryRespDTO> getTrajectoryPage(TrajectoryPageReqDTO req) {
+        PageResult<OpsDeviceTrajectoryDO> pageResult = trajectoryMapper.selectPage(req);
+        PageResult<TrajectoryRespDTO> result = BeanUtils.toBean(pageResult, TrajectoryRespDTO.class);
+        enrichWithAreaInfo(result.getList());
+        return result;
+    }
+
+    @Override
+    public List<TrajectoryRespDTO> getTimeline(Long deviceId, LocalDate date) {
+        List<OpsDeviceTrajectoryDO> list = trajectoryMapper.selectTimeline(deviceId, date);
+        List<TrajectoryRespDTO> result = BeanUtils.toBean(list, TrajectoryRespDTO.class);
+        enrichWithAreaInfo(result);
+        return result;
+    }
+
+    @Override
+    public TrajectorySummaryDTO getSummary(Long deviceId, LocalDate date) {
+        List<OpsDeviceTrajectoryDO> list = trajectoryMapper.selectTimeline(deviceId, date);
+        if (list.isEmpty()) {
+            return TrajectorySummaryDTO.builder()
+                    .totalRecords(0L)
+                    .completedRecords(0L)
+                    .coveredAreaCount(0L)
+                    .totalDurationSeconds(0L)
+                    .avgDurationSeconds(0L)
+                    .maxDurationSeconds(0L)
+                    .build();
+        }
+
+        long totalRecords = list.size();
+        long coveredAreaCount = list.stream()
+                .map(OpsDeviceTrajectoryDO::getAreaId)
+                .distinct()
+                .count();
+
+        // 只统计已关闭（有 durationSeconds）的记录
+        List<Integer> durations = list.stream()
+                .map(OpsDeviceTrajectoryDO::getDurationSeconds)
+                .filter(Objects::nonNull)
+                .toList();
+
+        long completedRecords = durations.size();
+        long totalDuration = durations.stream().mapToLong(Integer::longValue).sum();
+        long avgDuration = durations.isEmpty() ? 0 : totalDuration / durations.size();
+        long maxDuration = durations.stream().mapToInt(Integer::intValue).max().orElse(0);
+
+        return TrajectorySummaryDTO.builder()
+                .totalRecords(totalRecords)
+                .completedRecords(completedRecords)
+                .coveredAreaCount(coveredAreaCount)
+                .totalDurationSeconds(totalDuration)
+                .avgDurationSeconds(avgDuration)
+                .maxDurationSeconds(maxDuration)
+                .build();
+    }
+
+    // ==================== 内部方法 ====================
+
+    /**
+     * 填充单条记录的区域名称
+     */
+    private void fillAreaName(OpsDeviceTrajectoryDO record) {
+        if (record.getAreaId() == null) {
+            return;
+        }
+        try {
+            OpsBusAreaDO area = areaMapper.selectById(record.getAreaId());
+            if (area != null) {
+                record.setAreaName(area.getAreaName());
+            }
+        } catch (Exception e) {
+            log.warn("[Trajectory] 查询区域名称失败：areaId={}", record.getAreaId(), e);
+        }
+    }
+
+    /**
+     * 批量填充轨迹记录的区域信息（areaName、buildingName、floorNo）
+     */
+    private void enrichWithAreaInfo(List<TrajectoryRespDTO> list) {
+        if (list == null || list.isEmpty()) {
+            return;
+        }
+
+        // 收集所有 areaId
+        Set<Long> areaIds = list.stream()
+                .map(TrajectoryRespDTO::getAreaId)
+                .filter(Objects::nonNull)
+                .collect(Collectors.toSet());
+
+        if (areaIds.isEmpty()) {
+            return;
+        }
+
+        // 批量查询区域
+        List<OpsBusAreaDO> areas = areaMapper.selectBatchIds(areaIds);
+        Map<Long, OpsBusAreaDO> areaMap = areas.stream()
+                .collect(Collectors.toMap(OpsBusAreaDO::getId, a -> a, (a, b) -> a));
+
+        // 收集需要查询的父级 ID（楼栋信息）
+        Set<Long> parentIds = new HashSet<>();
+        for (OpsBusAreaDO area : areas) {
+            if (area.getParentPath() != null && !area.getParentPath().isEmpty()) {
+                // parentPath 格式: "/1/2/3"，提取所有祖先 ID
+                for (String idStr : area.getParentPath().split("/")) {
+                    if (!idStr.isEmpty()) {
+                        try {
+                            parentIds.add(Long.parseLong(idStr));
+                        } catch (NumberFormatException ignored) {
+                        }
+                    }
+                }
+            }
+            if (area.getParentId() != null) {
+                parentIds.add(area.getParentId());
+            }
+        }
+        parentIds.removeAll(areaIds); // 排除已查过的
+
+        // 批量查询父级区域
+        Map<Long, OpsBusAreaDO> allAreaMap = new HashMap<>(areaMap);
+        if (!parentIds.isEmpty()) {
+            List<OpsBusAreaDO> parentAreas = areaMapper.selectBatchIds(parentIds);
+            for (OpsBusAreaDO pa : parentAreas) {
+                allAreaMap.put(pa.getId(), pa);
+            }
+        }
+
+        // 填充每条记录
+        for (TrajectoryRespDTO dto : list) {
+            if (dto.getAreaId() == null) {
+                continue;
+            }
+            OpsBusAreaDO area = areaMap.get(dto.getAreaId());
+            if (area == null) {
+                continue;
+            }
+            dto.setAreaName(area.getAreaName());
+            dto.setFloorNo(area.getFloorNo());
+            dto.setBuildingName(findBuildingName(area, allAreaMap));
+
+            // 如果 floorNo 为空，尝试从 FLOOR 类型的父级获取
+            if (dto.getFloorNo() == null && area.getParentId() != null) {
+                OpsBusAreaDO parent = allAreaMap.get(area.getParentId());
+                if (parent != null && "FLOOR".equals(parent.getAreaType())) {
+                    dto.setFloorNo(parent.getFloorNo());
+                }
+            }
+        }
+    }
+
+    /**
+     * 沿 parentPath 向上查找 BUILDING 类型的祖先区域名称
+     */
+    private String findBuildingName(OpsBusAreaDO area, Map<Long, OpsBusAreaDO> allAreaMap) {
+        if (area.getParentPath() == null) {
+            return null;
+        }
+        for (String idStr : area.getParentPath().split("/")) {
+            if (idStr.isEmpty()) {
+                continue;
+            }
+            try {
+                OpsBusAreaDO ancestor = allAreaMap.get(Long.parseLong(idStr));
+                if (ancestor != null && "BUILDING".equals(ancestor.getAreaType())) {
+                    return ancestor.getAreaName();
+                }
+            } catch (NumberFormatException ignored) {
+            }
+        }
+        return null;
+    }
+}
diff --git a/viewsh-module-ops/viewsh-module-ops-api/src/main/java/com/viewsh/module/ops/enums/LeaveReasonEnum.java b/viewsh-module-ops/viewsh-module-ops-api/src/main/java/com/viewsh/module/ops/enums/LeaveReasonEnum.java
new file mode 100644
index 0000000..6a29f7b
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-ops-api/src/main/java/com/viewsh/module/ops/enums/LeaveReasonEnum.java
@@ -0,0 +1,22 @@
+package com.viewsh.module.ops.enums;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+/**
+ * 轨迹离开原因枚举
+ *
+ * @author lzh
+ */
+@Getter
+@AllArgsConstructor
+public enum LeaveReasonEnum {
+
+    SIGNAL_LOSS("SIGNAL_LOSS", "信号丢失"),
+    AREA_SWITCH("AREA_SWITCH", "切换到其他区域"),
+    DEVICE_OFFLINE("DEVICE_OFFLINE", "设备离线");
+
+    private final String reason;
+    private final String description;
+
+}
diff --git a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/dal/dataobject/trajectory/OpsDeviceTrajectoryDO.java b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/dal/dataobject/trajectory/OpsDeviceTrajectoryDO.java
new file mode 100644
index 0000000..f5c65db
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/dal/dataobject/trajectory/OpsDeviceTrajectoryDO.java
@@ -0,0 +1,104 @@
+package com.viewsh.module.ops.dal.dataobject.trajectory;
+
+import com.baomidou.mybatisplus.annotation.KeySequence;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.viewsh.framework.tenant.core.db.TenantBaseDO;
+import lombok.*;
+
+import java.time.LocalDateTime;
+
+/**
+ * 设备轨迹记录 DO
+ * <p>
+ * 记录工牌设备进出各区域的轨迹
+ * 一条记录表示一次"进入-离开"周期
+ *
+ * @author lzh
+ */
+@TableName("ops_device_trajectory")
+@KeySequence("ops_device_trajectory_seq")
+@Data
+@EqualsAndHashCode(callSuper = true)
+@ToString(callSuper = true)
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class OpsDeviceTrajectoryDO extends TenantBaseDO {
+
+    /**
+     * 主键
+     */
+    @TableId
+    private Long id;
+
+    /**
+     * 工牌设备ID
+     */
+    private Long deviceId;
+
+    /**
+     * 设备名称（冗余）
+     */
+    private String deviceName;
+
+    /**
+     * 设备备注名称（冗余）
+     */
+    private String nickname;
+
+    /**
+     * 人员ID（预留）
+     */
+    private Long personId;
+
+    /**
+     * 人员名称（预留）
+     */
+    private String personName;
+
+    /**
+     * 区域ID
+     */
+    private Long areaId;
+
+    /**
+     * 区域名称（冗余）
+     */
+    private String areaName;
+
+    /**
+     * 匹配的 Beacon MAC
+     */
+    private String beaconMac;
+
+    /**
+     * 进入时间
+     */
+    private LocalDateTime enterTime;
+
+    /**
+     * 离开时间
+     */
+    private LocalDateTime leaveTime;
+
+    /**
+     * 停留时长（秒）
+     */
+    private Integer durationSeconds;
+
+    /**
+     * 离开原因
+     * <p>
+     * SIGNAL_LOSS - 信号丢失
+     * AREA_SWITCH - 切换到其他区域
+     * DEVICE_OFFLINE - 设备离线
+     */
+    private String leaveReason;
+
+    /**
+     * 进入时 RSSI
+     */
+    private Integer enterRssi;
+
+}
diff --git a/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/dal/mysql/trajectory/OpsDeviceTrajectoryMapper.java b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/dal/mysql/trajectory/OpsDeviceTrajectoryMapper.java
new file mode 100644
index 0000000..b7f06ce
--- /dev/null
+++ b/viewsh-module-ops/viewsh-module-ops-biz/src/main/java/com/viewsh/module/ops/dal/mysql/trajectory/OpsDeviceTrajectoryMapper.java
@@ -0,0 +1,83 @@
+package com.viewsh.module.ops.dal.mysql.trajectory;
+
+import com.viewsh.framework.common.pojo.PageResult;
+import com.viewsh.framework.mybatis.core.mapper.BaseMapperX;
+import com.viewsh.framework.mybatis.core.query.LambdaQueryWrapperX;
+import com.viewsh.module.ops.dal.dataobject.trajectory.OpsDeviceTrajectoryDO;
+import com.viewsh.module.ops.service.trajectory.dto.TrajectoryPageReqDTO;
+import org.apache.ibatis.annotations.Mapper;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.List;
+
+/**
+ * 设备轨迹记录 Mapper
+ *
+ * @author lzh
+ */
+@Mapper
+public interface OpsDeviceTrajectoryMapper extends BaseMapperX<OpsDeviceTrajectoryDO> {
+
+    /**
+     * 查询设备在某区域最近一条未关闭的轨迹记录
+     */
+    default OpsDeviceTrajectoryDO selectOpenRecord(Long deviceId, Long areaId) {
+        return selectOne(new LambdaQueryWrapperX<OpsDeviceTrajectoryDO>()
+                .eq(OpsDeviceTrajectoryDO::getDeviceId, deviceId)
+                .eq(OpsDeviceTrajectoryDO::getAreaId, areaId)
+                .isNull(OpsDeviceTrajectoryDO::getLeaveTime)
+                .orderByDesc(OpsDeviceTrajectoryDO::getEnterTime)
+                .last("LIMIT 1"));
+    }
+
+    /**
+     * 查询设备在某区域未关闭的轨迹记录（加锁，防止并发竞态）
+     */
+    default OpsDeviceTrajectoryDO selectOpenRecordForUpdate(Long deviceId, Long areaId) {
+        return selectOne(new LambdaQueryWrapperX<OpsDeviceTrajectoryDO>()
+                .eq(OpsDeviceTrajectoryDO::getDeviceId, deviceId)
+                .eq(OpsDeviceTrajectoryDO::getAreaId, areaId)
+                .isNull(OpsDeviceTrajectoryDO::getLeaveTime)
+                .orderByDesc(OpsDeviceTrajectoryDO::getEnterTime)
+                .last("LIMIT 1 FOR UPDATE"));
+    }
+
+    /**
+     * 查询设备在某区域、按进入时间精确匹配的未关闭轨迹记录（加锁）
+     */
+    default OpsDeviceTrajectoryDO selectOpenRecordByEnterTimeForUpdate(Long deviceId, Long areaId,
+                                                                       LocalDateTime enterTime) {
+        return selectOne(new LambdaQueryWrapperX<OpsDeviceTrajectoryDO>()
+                .eq(OpsDeviceTrajectoryDO::getDeviceId, deviceId)
+                .eq(OpsDeviceTrajectoryDO::getAreaId, areaId)
+                .eq(OpsDeviceTrajectoryDO::getEnterTime, enterTime)
+                .isNull(OpsDeviceTrajectoryDO::getLeaveTime)
+                .last("LIMIT 1 FOR UPDATE"));
+    }
+
+    /**
+     * 分页查询轨迹记录
+     */
+    default PageResult<OpsDeviceTrajectoryDO> selectPage(TrajectoryPageReqDTO req) {
+        return selectPage(req, new LambdaQueryWrapperX<OpsDeviceTrajectoryDO>()
+                .eqIfPresent(OpsDeviceTrajectoryDO::getDeviceId, req.getDeviceId())
+                .eqIfPresent(OpsDeviceTrajectoryDO::getAreaId, req.getAreaId())
+                .betweenIfPresent(OpsDeviceTrajectoryDO::getEnterTime, req.getEnterTime())
+                .orderByDesc(OpsDeviceTrajectoryDO::getEnterTime));
+    }
+
+    /**
+     * 查询某设备某天的轨迹时间线（不分页，按进入时间升序）
+     */
+    default List<OpsDeviceTrajectoryDO> selectTimeline(Long deviceId, LocalDate date) {
+        LocalDateTime start = date.atStartOfDay();
+        LocalDateTime end = date.plusDays(1).atStartOfDay();
+        return selectList(new LambdaQueryWrapperX<OpsDeviceTrajectoryDO>()
+                .eq(OpsDeviceTrajectoryDO::getDeviceId, deviceId)
+                .ge(OpsDeviceTrajectoryDO::getEnterTime, start)
+                .lt(OpsDeviceTrajectoryDO::getEnterTime, end)
+                .orderByAsc(OpsDeviceTrajectoryDO::getEnterTime));
+    }
+
+}