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326
DeviceCommand/Devices/SDS2000X_HD.cs
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326
DeviceCommand/Devices/SDS2000X_HD.cs
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using Common.Attributes;
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using DeviceCommand.Base;
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using Model.Models;
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using System;
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using System.Globalization;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace DeviceCommand.Devices
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{
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[ACPCommand]
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public class SDS2000X_HD : Tcp
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{
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// 示波器底层 Socket 字符串命令以换行符 \n 结束
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private const string ScpiDelimiter = "\n";
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/// <summary>
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/// 构造函数：传入 <see cref="TcpConfig"/> 一次性初始化示波器通信参数。
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/// </summary>
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public SDS2000X_HD(TcpConfig config) : base(config)
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{
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}
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#region 1. IEEE 488.2 公共命令
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/// <summary>
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/// 清除标准事件状态寄存器和错误队列
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/// </summary>
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public virtual async Task 清除状态(CancellationToken ct = default)
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{
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await SendAsync($"*CLS{ScpiDelimiter}", ct);
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}
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/// <summary>
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/// 查询错误信息
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/// </summary>
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public virtual async Task<string> 查询错误信息(CancellationToken ct = default)
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{
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return await WriteReadAsync($":SYSTem:ERRor?{ScpiDelimiter}", ScpiDelimiter, ct); //[cite: 1]
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}
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/// <summary>
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/// 读取示波器识别字符串（制造商、型号、序列号、固件版本）
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/// </summary>
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public virtual async Task<string> 查询设备标识(CancellationToken ct = default)
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{
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return await WriteReadAsync($"*IDN?{ScpiDelimiter}", ScpiDelimiter, ct);
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}
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/// <summary>
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/// 复位命令。使示波器恢复到默认的出厂设置
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/// </summary>
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public virtual async Task 重置设备(CancellationToken ct = default)
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{
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await SendAsync($"*RST{ScpiDelimiter}", ct);
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}
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/// <summary>
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/// 查询先前操作是否完成。
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/// </summary>
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public virtual async Task<bool> 检查操作完成_OPC(CancellationToken ct = default)
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{
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string res = await WriteReadAsync($"*OPC?{ScpiDelimiter}", ScpiDelimiter, ct);
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return res.Trim() == "1";
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}
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#endregion
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#region 2. 运行与捕获控制 (Run / Stop / Single)
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/// <summary>
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/// 控制示波器开始捕获波形
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/// </summary>
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public virtual async Task 启动捕获_RUN(CancellationToken ct = default)
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{
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await SendAsync($":TRIGger:RUN{ScpiDelimiter}", ct);
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}
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/// <summary>
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/// 停止捕获波形
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/// </summary>
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public virtual async Task 停止捕获_STOP(CancellationToken ct = default)
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{
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await SendAsync($"TRIGger:STOP{ScpiDelimiter}", ct);
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}
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/// <summary>
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/// 强制示波器进入单次触发捕获模式
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/// </summary>
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public virtual async Task 单次触发_SINGLE(CancellationToken ct = default)
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{
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await SendAsync($":TRIGger:MODE SINGle{ScpiDelimiter}", ct);
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}
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/// <summary>
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/// 触发一次波形采样
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/// </summary>
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public virtual async Task 强制触发(CancellationToken ct = default)
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{
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await SendAsync($"::TRIGger:MODE FTRIG{ScpiDelimiter}", ct);
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}
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/// <summary>
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/// 示波器触发控制模式（符合 SDS2000X-HD 规范）。
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/// </summary>
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public enum TriggerMode
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{
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/// <summary>
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/// 自动触发模式 (即使无触发信号也周期性刷屏)
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/// </summary>
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AUTO,
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/// <summary>
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/// 普通触发模式 (仅当满足触发条件时才刷新)
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/// </summary>
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NORM,
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/// <summary>
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/// 单次触发模式 (捕捉到一次满足条件的信号后立刻 STOP)
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/// </summary>
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SINGLE
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}
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/// <summary>
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/// 设置触发模式 (AUTO 自动, NORM 普通, SINGLE 单次)
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/// </summary>
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/// <param name="mode">触发模式枚举</param>
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/// <param name="ct">取消令牌</param>
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public virtual async Task 设置触发模式(TriggerMode mode, CancellationToken ct = default)
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{
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// 例如发送：TRMD AUTO\n、TRMD NORM\n 或 TRMD SINGLE\n
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string cmd = $"TRMD {mode}{ScpiDelimiter}";
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await SendAsync(cmd, ct);
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}
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#endregion
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#region 3. Channel 垂直控制子系统 (C1 ~ C4)
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/// <summary>
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/// 开启或关闭指定的模拟通道 (符合手册 57 页规范)
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/// </summary>
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public virtual async Task 设置通道开关(int channel, bool enable, CancellationToken ct = default)
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{
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string state = enable ? "ON" : "OFF";
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await SendAsync($"C{channel}:TRAce {state}{ScpiDelimiter}", ct);
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}
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/// <summary>
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/// 设置指定通道的垂直电压档位 (Volts/Div)
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/// </summary>
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public virtual async Task 设置通道电压档位(int channel, double volts, CancellationToken ct = default)
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{
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string cmd = string.Format(CultureInfo.InvariantCulture, "C{0}:VDIV {1:F4}{2}", channel, volts, ScpiDelimiter);
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await SendAsync(cmd, ct);
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}
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/// <summary>
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/// 查询指定通道当前的电压档位
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/// </summary>
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public virtual async Task<string> 查询通道电压档位(int channel, CancellationToken ct = default)
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{
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return await WriteReadAsync($"C{channel}:VDIV?{ScpiDelimiter}", ScpiDelimiter, ct);
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}
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/// <summary>
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/// 设置指定通道的垂直偏移量 (Offset)
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/// </summary>
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public virtual async Task 设置通道垂直偏移(int channel, double offset, CancellationToken ct = default)
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{
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string cmd = string.Format(CultureInfo.InvariantCulture, "C{0}:OFST {1:F4}{2}", channel, offset, ScpiDelimiter);
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await SendAsync(cmd, ct);
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}
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/// <summary>
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/// 示波器通道输入阻抗类型。
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/// </summary>
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public enum ImpedanceType
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{
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/// <summary>50Ω 阻抗</summary>
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FIFty,
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/// <summary>1MΩ 阻抗</summary>
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ONEM
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}
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public virtual async Task 设置通道阻抗(int channel, ImpedanceType impedance, CancellationToken ct = default)
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{
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// 例如发送：C1:IMPedance FIFty\n 或 C1:IMPedance ONEM\n
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string cmd = $"CHANnel{channel}:IMPedance {impedance}{ScpiDelimiter}";
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await SendAsync(cmd, ct);
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}
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#endregion
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#region 4. Timebase 水平时基子系统
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/// <summary>
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/// 设置示波器的水平时基档位 (Time/Div)
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/// </summary>
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public virtual async Task 设置水平时基(double scale, CancellationToken ct = default)
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{
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string cmd = string.Format(CultureInfo.InvariantCulture, "TDIV {0:E6}{1}", scale, ScpiDelimiter);
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await SendAsync(cmd, ct);
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}
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/// <summary>
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/// 设置示波器的触发水平延迟位置 (Horizontal Delay)
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/// </summary>
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public virtual async Task 设置水平延迟(double delay, CancellationToken ct = default)
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{
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string cmd = string.Format(CultureInfo.InvariantCulture, "TRDL {0:E6}{1}", delay, ScpiDelimiter);
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await SendAsync(cmd, ct);
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}
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#endregion
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#region 5. Trigger 触发子系统
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/// <summary>
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/// 设置边沿触发的电平值 (Trigger Level)
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/// </summary>
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public virtual async Task 设置触发电平(double level, CancellationToken ct = default)
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{
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string cmd = string.Format(CultureInfo.InvariantCulture, "TRIGger:EDGE:LEVel {0:F3}{1}", level, ScpiDelimiter);
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await SendAsync(cmd, ct);
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}
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/// <summary>
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/// 设置边沿触发的触发源 (例如: C1, C2, C3, C4, EX, LINE)
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/// </summary>
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public virtual async Task 设置触发源(string source, CancellationToken ct = default)
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{
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await SendAsync($"TRSE EDGE,SR,{source.ToUpper()}{ScpiDelimiter}", ct);
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}
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#endregion
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#region 6. Measure 自动测量参数回读
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/// <summary>
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/// 查询指定通道自动测量项的当前实时测量数值
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/// </summary>
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public virtual async Task<string> 查询通道测量项参数(int channel, string paramName, CancellationToken ct = default)
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{
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string query = string.Format(CultureInfo.InvariantCulture, "C{0}:PAVA? {1}{2}", channel, paramName.ToUpper(), ScpiDelimiter);
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return await WriteReadAsync(query, ScpiDelimiter, ct);
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}
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/// <summary>
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/// 查询指定通道的电压峰峰值 (Vpp)
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/// </summary>
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public virtual async Task<string> 查询实际电压峰峰值(int channel, CancellationToken ct = default)
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{
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return await 查询通道测量项参数(channel, "PKPK", ct);
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}
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/// <summary>
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/// 查询指定通道的频率值 (Frequency)
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/// </summary>
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public virtual async Task<string> 查询实际频率(int channel, CancellationToken ct = default)
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{
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return await 查询通道测量项参数(channel, "FREQ", ct);
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}
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/// <summary>
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/// 查询指定通道的真均方根电压值 (Vrms)
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/// </summary>
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public virtual async Task<string> 查询实际电压均方根(int channel, CancellationToken ct = default)
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{
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return await 查询通道测量项参数(channel, "RMS", ct);
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}
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#endregion
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#region 7. 屏幕截图导出子系统
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/// 【一键获取并保存截图】
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/// 自动下发 :PRINt? PNG 指令，接收示波器返回的纯 PNG 二进制流并直接保存到指定路径。
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/// </summary>
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/// <param name="saveFilePath">本地绝对保存路径 (例如: @"D:\Oscilloscope\Screen_01.png")</param>
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/// <param name="ct">取消令牌</param>
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/// <returns>返回是否获取并保存成功</returns>
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public virtual async Task<bool> 获取屏幕图像并保存(string saveFilePath, CancellationToken ct = default)
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{
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try
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{
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// 1. 调用我们在基类 Tcp 中全新实现的 ReadRawAsync
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// 它会在内部下发 ":PRINt? PNG\n"，自动接收完整的网络字节流
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byte[] pureImageBytes = await ReadAllBytesAsync($":PRINt? PNG{ScpiDelimiter}", ct);
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// 2. 校验返回数据
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if (pureImageBytes == null || pureImageBytes.Length < 8)
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{
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System.Diagnostics.Debug.WriteLine("错误：接收到的图片数据为空或长度不足。");
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return false;
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}
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// 3. 核心校验：验证是否为标准的 PNG 文件格式 (PNG 头通常为 89 50 4E 47)
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if (pureImageBytes[0] != 0x89 || pureImageBytes[1] != 'P' || pureImageBytes[2] != 'N' || pureImageBytes[3] != 'G')
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{
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System.Diagnostics.Debug.WriteLine("错误：接收到的二进制数据不符合标准 PNG 格式头！");
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return false;
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}
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// 4. 如果传入的目标文件夹路径不存在，自动帮其创建
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string directory = Path.GetDirectoryName(saveFilePath);
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if (!string.IsNullOrEmpty(directory) && !Directory.Exists(directory))
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{
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Directory.CreateDirectory(directory);
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}
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// 5. 使用文件流直接将 PNG 字节数据落地写入本地硬盘
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using (FileStream fs = new FileStream(saveFilePath, FileMode.Create, FileAccess.Write))
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{
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await fs.WriteAsync(pureImageBytes, 0, pureImageBytes.Length, ct);
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await fs.FlushAsync(ct); // 强制刷新，确保数据完整落地
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}
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System.Diagnostics.Debug.WriteLine($"成功：截图已保存至路径: {saveFilePath}");
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return true;
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}
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catch (Exception ex)
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{
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System.Diagnostics.Debug.WriteLine($"崩溃：保存截图时发生未知异常: {ex.Message}");
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return false;
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}
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}
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#endregion
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}
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}
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