244 lines
7.3 KiB
Markdown
244 lines
7.3 KiB
Markdown
# ploss_record 实体
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> 所属模块：[数据模型概览](../概览.md)
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---
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## 1. 表定义
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**表名**：`ploss_record`
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**描述**：存储 Ploss FOD 格式解析数据，对应日志格式 `FOD-> (1)...(13)`
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---
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## 2. 字段定义
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> **类型修正说明**：需求文档中 rx_power, tx_power, vcoil, vin, isns, pwm_duty 为 `uint16`（0-65535），但 SQLite 不支持无符号类型。实际数据如 vcoil=35377 超出了 SMALLINT（-32768~32767）范围，因此这些字段使用 INT 类型存储。
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| 列名 | 类型 | 约束 | 说明 |
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|------|------|------|------|
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| id | UUID | PK, NOT NULL | 主键 |
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| scenario_id | UUID | FK, NOT NULL | 关联测试场景 |
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| rx_type | TINYINT | NOT NULL | 接收端类型标识 |
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| rx_power | INT | NOT NULL | 接收端功率（mW），原 uint16 |
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| tx_power | INT | NOT NULL | 发射端功率（mW），原 uint16 |
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| vcoil | INT | NOT NULL | 发射线圈电压，原 uint16 |
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| vin | INT | NOT NULL | 输入电压，原 uint16 |
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| isns | INT | NOT NULL | 输入电流采样值，原 uint16 |
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| ploss | INT | NOT NULL | **核心值**：计算损耗（负数=安全） |
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| threshold | INT | NOT NULL | **安全红线**：当前功率段阈值 |
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| trigger_count | INT | NOT NULL, DEFAULT 0 | 触发计数器 |
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| fod_result | INT | NOT NULL, DEFAULT 0 | FOD判定结果 |
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| protocol_type | TINYINT | NOT NULL | 充电协议类型 |
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| pwm_duty | INT | NOT NULL | PWM占空比，原 uint16 |
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| coil_index | TINYINT | NOT NULL | 充电线圈索引 |
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| is_deleted | BOOLEAN | NOT NULL, DEFAULT FALSE | 软删除标记 |
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| created_at | TIMESTAMP | NOT NULL, DEFAULT NOW() | 创建时间 |
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---
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## 3. 外键
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| 外键 | 引用表 | 说明 |
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|------|--------|------|
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| scenario_id | test_scenario.id | 关联测试场景（必需） |
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---
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## 4. 派生字段
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> **注意**：以下字段不落库，查询时动态计算
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| 字段 | 计算公式 | 说明 |
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|------|----------|------|
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| margin | threshold - ploss | 安全余量（>0 安全，<0 危险） |
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> **使用限制**：`Margin` 属性通过 EF Core `Ignore()` 排除映射，仅用于内存计算。不可在数据库查询中直接使用（如 `WHERE Margin > 0`），需改用 `WHERE (threshold - ploss) > 0` 或先加载到内存再计算。
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---
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## 5. 索引
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| 索引名 | 字段 | 用途 |
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|--------|------|------|
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| idx_ploss_scenario | scenario_id | 按测试场景查询 |
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| idx_ploss_rx_power | rx_power | 阈值表匹配 |
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| idx_ploss_ploss | ploss | 损耗值查询 |
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| idx_ploss_threshold | threshold | 阈值查询 |
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| idx_ploss_fod_result | fod_result | FOD结果筛选 |
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---
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## 6. EF Core 模型
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### 实体类
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```csharp
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// Models/PlossRecord.cs
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namespace WCTDataMiner.Models;
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public class PlossRecord
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{
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public Guid Id { get; set; } = Guid.NewGuid();
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public Guid ScenarioId { get; set; }
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public byte RxType { get; set; }
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public short RxPower { get; set; }
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public short TxPower { get; set; }
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public short Vcoil { get; set; }
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public short Vin { get; set; }
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public short Isns { get; set; }
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/// <summary>核心判定值：负数表示安全</summary>
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public int Ploss { get; set; }
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/// <summary>安全红线：当前功率段阈值</summary>
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public int Threshold { get; set; }
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public short TriggerCount { get; set; } = 0;
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public short FodResult { get; set; } = 0;
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public byte ProtocolType { get; set; }
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public short PwmDuty { get; set; }
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public byte CoilIndex { get; set; }
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public bool IsDeleted { get; set; } = false;
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public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
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// Navigation Properties
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public TestScenario Scenario { get; set; } = null!;
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/// <summary>派生属性：安全余量（不落库）</summary>
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public int Margin => Threshold - Ploss;
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}
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```
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### 配置类
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```csharp
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// Data/Configurations/PlossRecordConfiguration.cs
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using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Metadata.Builders;
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using WCTDataMiner.Models;
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namespace WCTDataMiner.Data.Configurations;
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public class PlossRecordConfiguration : IEntityTypeConfiguration<PlossRecord>
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{
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public void Configure(EntityTypeBuilder<PlossRecord> builder)
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{
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builder.ToTable("ploss_record");
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builder.HasKey(e => e.Id);
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builder.Property(e => e.Id).HasColumnName("id");
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builder.Property(e => e.ScenarioId)
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.IsRequired()
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.HasColumnName("scenario_id");
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builder.Property(e => e.RxType)
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.IsRequired()
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.HasColumnName("rx_type");
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builder.Property(e => e.RxPower)
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.IsRequired()
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.HasColumnName("rx_power");
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builder.Property(e => e.TxPower)
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.IsRequired()
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.HasColumnName("tx_power");
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builder.Property(e => e.Vcoil)
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.IsRequired()
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.HasColumnName("vcoil");
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builder.Property(e => e.Vin)
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.IsRequired()
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.HasColumnName("vin");
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builder.Property(e => e.Isns)
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.IsRequired()
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.HasColumnName("isns");
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builder.Property(e => e.Ploss)
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.IsRequired()
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.HasColumnName("ploss");
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builder.Property(e => e.Threshold)
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.IsRequired()
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.HasColumnName("threshold");
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builder.Property(e => e.TriggerCount)
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.IsRequired()
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.HasDefaultValue((short)0)
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.HasColumnName("trigger_count");
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builder.Property(e => e.FodResult)
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.IsRequired()
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.HasDefaultValue((short)0)
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.HasColumnName("fod_result");
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builder.Property(e => e.ProtocolType)
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.IsRequired()
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.HasColumnName("protocol_type");
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builder.Property(e => e.PwmDuty)
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.IsRequired()
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.HasColumnName("pwm_duty");
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builder.Property(e => e.CoilIndex)
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.IsRequired()
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.HasColumnName("coil_index");
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builder.Property(e => e.IsDeleted)
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.IsRequired()
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.HasDefaultValue(false)
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.HasColumnName("is_deleted");
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builder.Property(e => e.CreatedAt)
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.IsRequired()
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.HasDefaultValueSql("NOW()")
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.HasColumnName("created_at");
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// 派生属性不落库
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builder.Ignore(e => e.Margin);
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// 索引
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builder.HasIndex(e => e.ScenarioId).HasDatabaseName("idx_ploss_scenario");
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builder.HasIndex(e => e.RxPower).HasDatabaseName("idx_ploss_rx_power");
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builder.HasIndex(e => e.Ploss).HasDatabaseName("idx_ploss_ploss");
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builder.HasIndex(e => e.Threshold).HasDatabaseName("idx_ploss_threshold");
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builder.HasIndex(e => e.FodResult).HasDatabaseName("idx_ploss_fod_result");
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// 关系配置
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builder.HasOne(e => e.Scenario)
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.WithMany(e => e.PlossRecords)
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.HasForeignKey(e => e.ScenarioId)
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.IsRequired();
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}
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}
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```
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---
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## 7. 动态阈值表
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> 阈值根据 RxPower 动态查表（不落库）
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| Rx Power 区间 | Threshold | 备注 |
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|---------------|-----------|------|
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| 0-5000 mW | 350 mW | 低功率最敏感 |
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| 5000-10000 mW | 500 mW | |
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| 10000-15000 mW | 750 mW | |
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| 15000-30000 mW | 1000 mW | |
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| 30000-50000 mW | 1250 mW | 高功率 |
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```csharp
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// Services/ThresholdCalculator.cs
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public static int GetThresholdByPower(int rxPower)
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{
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if (rxPower <= 5000) return 350;
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if (rxPower <= 10000) return 500;
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if (rxPower <= 15000) return 750;
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if (rxPower <= 30000) return 1000;
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return 1250;
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}
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``` |