387 lines
15 KiB
C#
387 lines
15 KiB
C#
using DeviceCommand.Devices;
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using Prism.Commands;
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using Prism.Ioc;
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using System;
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using System.Globalization;
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using System.Text.RegularExpressions;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Input;
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using UIShare.GlobalVariable;
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using UIShare.ViewModelBase;
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using static DeviceCommand.Devices.SDS2000X_HD;
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namespace DeviceEditModule.ViewModels
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{
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/// <summary>
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/// SDS2000X_HD 数字存储示波器控制面板 ViewModel。
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/// </summary>
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public class SDS2000X_HDViewModel : NavigateViewModelBase, IDisposable
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{
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#region 私有字段
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private readonly DeviceManager _deviceManager;
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private SDS2000X_HD? _device;
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private CancellationTokenSource? _cts;
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#endregion
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#region 设备信息属性
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private string _deviceName = "SDS2000X_HD";
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public string DeviceName
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{
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get => _deviceName;
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set => SetProperty(ref _deviceName, value);
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}
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private bool _isConnected;
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public bool IsConnected
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{
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get => _isConnected;
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set => SetProperty(ref _isConnected, value);
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}
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private bool _isBusy;
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public bool IsBusy
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{
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get => _isBusy;
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set => SetProperty(ref _isBusy, value);
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}
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#endregion
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#region 输入参数属性
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private int _channel = 1;
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/// <summary>当前操作通道（1~4）。</summary>
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public int Channel
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{
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get => _channel;
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set => SetProperty(ref _channel, value);
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}
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private double _voltsPerDiv = 1.0;
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/// <summary>垂直电压档位（V/div）。</summary>
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public double VoltsPerDiv
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{
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get => _voltsPerDiv;
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set => SetProperty(ref _voltsPerDiv, value);
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}
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private double _offset = 0.0;
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/// <summary>垂直偏移（V）。</summary>
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public double Offset
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{
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get => _offset;
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set => SetProperty(ref _offset, value);
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}
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private bool _is50Ohm;
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/// <summary>是否使用 50Ω 输入阻抗，false 为 1MΩ。</summary>
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public bool Is50Ohm
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{
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get => _is50Ohm;
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set => SetProperty(ref _is50Ohm, value);
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}
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private double _timeBase = 0.001;
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/// <summary>水平时基档位（s/div）。</summary>
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public double TimeBase
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{
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get => _timeBase;
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set => SetProperty(ref _timeBase, value);
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}
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private double _triggerLevel = 0.0;
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/// <summary>触发电平（V）。</summary>
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public double TriggerLevel
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{
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get => _triggerLevel;
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set => SetProperty(ref _triggerLevel, value);
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}
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private string _triggerSource = "C1";
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/// <summary>触发源（C1/C2/C3/C4/EX/LINE）。</summary>
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public string TriggerSource
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{
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get => _triggerSource;
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set => SetProperty(ref _triggerSource, value);
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}
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#endregion
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#region 测量结果属性
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private string _measuredVpp = "—";
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public string MeasuredVpp
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{
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get => _measuredVpp;
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set => SetProperty(ref _measuredVpp, value);
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}
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private string _measuredFrequency = "—";
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public string MeasuredFrequency
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{
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get => _measuredFrequency;
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set => SetProperty(ref _measuredFrequency, value);
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}
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private string _measuredRms = "—";
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public string MeasuredRms
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{
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get => _measuredRms;
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set => SetProperty(ref _measuredRms, value);
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}
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private string _responseLog = string.Empty;
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/// <summary>命令响应日志（最新消息在顶部）。</summary>
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public string ResponseLog
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{
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get => _responseLog;
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set => SetProperty(ref _responseLog, value);
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}
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#endregion
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#region 命令
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public ICommand QueryIdentityCommand { get; }
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public ICommand ResetDeviceCommand { get; }
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public ICommand RunCommand { get; }
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public ICommand StopCommand { get; }
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public ICommand SingleCommand { get; }
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public ICommand ForceTriggerCommand { get; }
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public ICommand SetChannelOnCommand { get; }
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public ICommand SetChannelOffCommand { get; }
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public ICommand SetVoltsDivCommand { get; }
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public ICommand SetOffsetCommand { get; }
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// 🛠️ 补全：设置阻抗的 Command
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public ICommand SetImpedance50Command { get; }
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public ICommand SetImpedance1MCommand { get; }
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public ICommand SetTimeBaseCommand { get; }
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public ICommand SetTriggerLevelCommand { get; }
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public ICommand SetTriggerSourceCommand { get; }
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public ICommand QueryMeasurementsCommand { get; }
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public ICommand QueryVppCommand { get; }
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public ICommand QueryFrequencyCommand { get; }
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public ICommand QueryRmsCommand { get; }
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#endregion
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public SDS2000X_HDViewModel(IContainerProvider containerProvider) : base(containerProvider)
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{
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_deviceManager = containerProvider.Resolve<DeviceManager>();
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QueryIdentityCommand = new DelegateCommand(async () => await Exec(async () => AppendLog("IDN: " + await _device!.查询设备标识(Ct()))));
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ResetDeviceCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.重置设备(Ct()); AppendLog("设备已重置"); }));
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RunCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.启动捕获_RUN(Ct()); AppendLog("已开始捕获"); }));
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StopCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.停止捕获_STOP(Ct()); AppendLog("已停止捕获"); }));
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SingleCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.单次触发_SINGLE(Ct()); AppendLog("已触发单次捕获"); }));
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ForceTriggerCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.强制触发(Ct()); AppendLog("已强制触发"); }));
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SetChannelOnCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.设置通道开关(Channel, true, Ct()); AppendLog($"通道 {Channel} 已开启"); }));
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SetChannelOffCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.设置通道开关(Channel, false, Ct()); AppendLog($"通道 {Channel} 已关闭"); }));
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SetVoltsDivCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.设置通道电压档位(Channel, VoltsPerDiv, Ct()); AppendLog($"C{Channel} 电压档位已设为 {VoltsPerDiv} V/div"); }));
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SetOffsetCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.设置通道垂直偏移(Channel, Offset, Ct()); AppendLog($"C{Channel} 垂直偏移已设为 {Offset} V"); }));
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// 🛠️ 绑定：设置 50Ω 和 1MΩ 阻抗控制
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SetImpedance50Command = new DelegateCommand(async () => await Exec(async () =>
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{
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await _device!.设置通道阻抗(Channel, ImpedanceType.FIFty, Ct());
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Is50Ohm = true;
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AppendLog($"C{Channel} 输入阻抗已设为 50Ω");
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}));
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SetImpedance1MCommand = new DelegateCommand(async () => await Exec(async () =>
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{
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await _device!.设置通道阻抗(Channel, ImpedanceType.ONEM, Ct());
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Is50Ohm = false;
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AppendLog($"C{Channel} 输入阻抗已设为 1MΩ");
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}));
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SetTimeBaseCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.设置水平时基(TimeBase, Ct()); AppendLog($"水平时基已设为 {TimeBase} s/div"); }));
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SetTriggerLevelCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.设置触发电平(TriggerLevel, Ct()); AppendLog($"触发电平已设为 {TriggerLevel} V"); }));
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SetTriggerSourceCommand = new DelegateCommand(async () => await Exec(async () => { await _device!.设置触发源(TriggerSource, Ct()); AppendLog($"触发源已设为 {TriggerSource}"); }));
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QueryMeasurementsCommand = new DelegateCommand(async () => await Exec(async () =>
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{
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// 1. 保留设备原生吐出的完整原始字符串
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string rawVpp = await _device!.查询实际电压峰峰值(Channel, Ct());
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string rawFreq = await _device!.查询实际频率(Channel, Ct());
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string rawRms = await _device!.查询实际电压均方根(Channel, Ct());
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// 2. 清洗数据并将科学计数法转为常规小数后赋值给 UI 属性
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MeasuredVpp = ParseMeasurement(rawVpp);
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MeasuredFrequency = ParseMeasurement(rawFreq);
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MeasuredRms = ParseMeasurement(rawRms);
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// 3. 在日志中同时体现设备原始报文与解析呈现值，极方便联调
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AppendLog($"C{Channel} 测量原始数据 → Vpp:{rawVpp.Trim()} Freq:{rawFreq.Trim()} RMS:{rawRms.Trim()}");
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AppendLog($"C{Channel} 界面呈现数值 → Vpp:{MeasuredVpp}V Freq:{MeasuredFrequency}Hz RMS:{MeasuredRms}V");
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}));
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QueryVppCommand = new DelegateCommand(async () => await Exec(async () =>
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{
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string raw = await _device!.查询实际电压峰峰值(Channel, Ct());
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MeasuredVpp = ParseMeasurement(raw);
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AppendLog($"C{Channel} Vpp: {MeasuredVpp} (Raw: {raw.Trim()})");
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}));
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QueryFrequencyCommand = new DelegateCommand(async () => await Exec(async () =>
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{
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string raw = await _device!.查询实际频率(Channel, Ct());
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MeasuredFrequency = ParseMeasurement(raw);
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AppendLog($"C{Channel} Freq: {MeasuredFrequency} (Raw: {raw.Trim()})");
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}));
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QueryRmsCommand = new DelegateCommand(async () => await Exec(async () =>
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{
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string raw = await _device!.查询实际电压均方根(Channel, Ct());
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MeasuredRms = ParseMeasurement(raw);
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AppendLog($"C{Channel} RMS: {MeasuredRms} (Raw: {raw.Trim()})");
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}));
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Initialize();
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}
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#region 初始化 / Navigation
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public void Initialize(string? deviceName = null)
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{
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SDS2000X_HD? found = null;
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string? foundName = null;
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if (deviceName != null &&
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_deviceManager.DeviceMap.TryGetValue(deviceName, out var d) &&
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d is SDS2000X_HD s)
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{
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found = s;
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foundName = deviceName;
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}
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else
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{
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foreach (var kv in _deviceManager.DeviceMap)
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{
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if (kv.Value is SDS2000X_HD sds)
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{
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found = sds;
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foundName = kv.Key;
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break;
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}
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}
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}
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_device = found;
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DeviceName = foundName ?? "SDS2000X_HD (未找到)";
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IsConnected = _device?.IsConnected ?? false;
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AppendLog(found != null
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? $"已关联设备 [{DeviceName}]，连接状态：{(IsConnected ? "已连接" : "未连接")}"
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: "未在 DeviceManager 中找到 SDS2000X_HD 设备，请先初始化设备配置。");
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}
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public override void OnNavigatedTo(NavigationContext context)
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{
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var name = context.Parameters.GetValue<string?>("DeviceName");
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Initialize(name);
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}
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#endregion
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#region 辅助
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private CancellationToken Ct() => (_cts = new CancellationTokenSource(TimeSpan.FromSeconds(10))).Token;
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private async Task Exec(Func<Task> action)
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{
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if (_device == null)
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{
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AppendLog("错误：未关联到设备实例，请检查设备配置。");
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return;
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}
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if (IsBusy) return;
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IsBusy = true;
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try
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{
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await action();
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IsConnected = _device.IsConnected;
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}
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catch (OperationCanceledException)
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{
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AppendLog("命令超时或已取消。");
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}
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catch (Exception ex)
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{
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AppendLog($"错误：{ex.Message}");
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}
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finally
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{
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IsBusy = false;
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}
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}
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private void AppendLog(string message)
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{
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var line = $"[{DateTime.Now:HH:mm:ss}] {message}";
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ResponseLog = ResponseLog.Length > 4000
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? line + "\n" + ResponseLog[..3000]
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: line + "\n" + ResponseLog;
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}
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/// <summary>
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/// 清洗示波器原始返回的测量字符串（例如 "C1:PAVA RMS,5.57E-03V"）并安全转化为无科学计数法的小数形式。
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/// </summary>
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/// <param name="rawResponse">设备原始应答数据</param>
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/// <returns>可直接绑定到 UI 呈现的字符串数字</returns>
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private string ParseMeasurement(string rawResponse)
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{
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if (string.IsNullOrWhiteSpace(rawResponse)) return "—";
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try
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{
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string cleanData = rawResponse.Trim();
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// 1. 斩断报头，提取逗号后面的具体内容（如 "5.57E-03V" 或 "****"）
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int commaIndex = cleanData.IndexOf(',');
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if (commaIndex == -1) return "—";
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string valStr = cleanData.Substring(commaIndex + 1);
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var match = Regex.Match(valStr, @"[-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?");
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if (match.Success)
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{
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valStr = match.Value;
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}
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// 3. 校验并拦截设备未测出时的无效星号 "****"
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if (valStr.Contains("*") || string.IsNullOrWhiteSpace(valStr))
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{
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return "0"; // 回归为零或 "—"，防止触发数据异常
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}
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// 4. 解析科学计数法，并重新以不带科学计数法的小数样式展开
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if (double.TryParse(valStr, NumberStyles.Any, CultureInfo.InvariantCulture, out double result))
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{
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// "0.######" 样式会自动消除末尾无用的冗余零，并显示为普通小数（如 0.00557）
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return result.ToString("0.######", CultureInfo.InvariantCulture);
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}
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}
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catch
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{
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// 捕获可能产生的边缘转换故障，保证轮询线程绝不崩溃
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}
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return "—";
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}
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#endregion
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public void Dispose()
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{
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_cts?.Cancel();
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_cts?.Dispose();
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}
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}
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} |