fix LSB_32BIT bug and set keep alive option

SamplingDialog.py

@@ -742,7 +742,8 @@ class CalibrationDialog(QDialog):
     def process_wave_packet(self, wave_data):
         data = wave_data  # 接收所有数据
         data = np.frombuffer(data, dtype=np.int32)  # 根据实际数据格式转换
-        LSB_32BIT = (2.8 / (2 ** 31)) * ((750 + 287) / 287) * 1000 / 10.2
+        LSB_32BIT = (2.8 / (2 ** 31)) * ((750 + 249) / 249) * 1000 / 10.2
+        # LSB_32BIT = (2.8 / (2 ** 31)) * ((750 + 287) / 287) * 1000 / 10.2
         self.scaled_data = data * LSB_32BIT
 
         result = self.get_extremes(self.scaled_data)

mainwindow.py

@@ -8,6 +8,7 @@ from typing import Tuple, Optional
 import matplotlib
 import matplotlib.pyplot as plt
 from PyQt5.QtCore import QTimer
+from PyQt5.QtNetwork import QAbstractSocket
 from PyQt5.QtWidgets import QFrame, QStatusBar, QSizePolicy, QFileDialog, QApplication, QMainWindow, QWidget, QAction
 from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas, NavigationToolbar2QT
 from scipy.fft import fft, fftfreq
@@ -403,6 +404,8 @@ class SocketClientApp(QMainWindow):
             port = int(self.port_input.text())
             self.socket.abort()
             self.socket.connectToHost(ip, port)
+            # 设置 TCP Keep-Alive
+            self.socket.setSocketOption(QAbstractSocket.KeepAliveOption, True)
 
     def on_socket_connected(self):
         self.status_bar.showMessage("状态: 连接成功")