Files
PLFM_RADAR/9_Firmware/9_3_GUI/GUI_V2.py
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2026-03-09 00:17:39 +00:00

1060 lines
41 KiB
Python

import tkinter as tk
from tkinter import ttk, messagebox
import threading
import queue
import time
import struct
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure
import logging
from dataclasses import dataclass
from typing import Dict, List, Tuple, Optional
from scipy import signal
from sklearn.cluster import DBSCAN
from filterpy.kalman import KalmanFilter
import crcmod
import math
try:
import usb.core
import usb.util
USB_AVAILABLE = True
except ImportError:
USB_AVAILABLE = False
logging.warning("pyusb not available. USB CDC functionality will be disabled.")
try:
from pyftdi.ftdi import Ftdi
from pyftdi.usbtools import UsbTools
FTDI_AVAILABLE = True
except ImportError:
FTDI_AVAILABLE = False
logging.warning("pyftdi not available. FTDI functionality will be disabled.")
# Configure logging
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
@dataclass
class RadarTarget:
id: int
range: float
velocity: float
azimuth: int
elevation: int
snr: float
timestamp: float
track_id: int = -1
@dataclass
class RadarSettings:
system_frequency: float = 10e9
chirp_duration: float = 30e-6
chirps_per_position: int = 32
freq_min: float = 10e6
freq_max: float = 30e6
prf1: float = 1000
prf2: float = 2000
max_distance: float = 50000
@dataclass
class GPSData:
latitude: float
longitude: float
altitude: float
timestamp: float
class STM32USBInterface:
def __init__(self):
self.device = None
self.is_open = False
self.ep_in = None
self.ep_out = None
def list_devices(self):
"""List available STM32 USB CDC devices"""
if not USB_AVAILABLE:
logging.warning("USB not available - please install pyusb")
return []
try:
devices = []
# STM32 USB CDC devices typically use these vendor/product IDs
stm32_vid_pids = [
(0x0483, 0x5740), # STM32 Virtual COM Port
(0x0483, 0x3748), # STM32 Discovery
(0x0483, 0x374B), # STM32 CDC
(0x0483, 0x374D), # STM32 CDC
(0x0483, 0x374E), # STM32 CDC
(0x0483, 0x3752), # STM32 CDC
]
for vid, pid in stm32_vid_pids:
found_devices = usb.core.find(find_all=True, idVendor=vid, idProduct=pid)
for dev in found_devices:
try:
product = usb.util.get_string(dev, dev.iProduct) if dev.iProduct else "STM32 CDC"
serial = usb.util.get_string(dev, dev.iSerialNumber) if dev.iSerialNumber else "Unknown"
devices.append({
'description': f"{product} ({serial})",
'vendor_id': vid,
'product_id': pid,
'device': dev
})
except:
devices.append({
'description': f"STM32 CDC (VID:{vid:04X}, PID:{pid:04X})",
'vendor_id': vid,
'product_id': pid,
'device': dev
})
return devices
except Exception as e:
logging.error(f"Error listing USB devices: {e}")
# Return mock devices for testing
return [{'description': 'STM32 Virtual COM Port', 'vendor_id': 0x0483, 'product_id': 0x5740}]
def open_device(self, device_info):
"""Open STM32 USB CDC device"""
if not USB_AVAILABLE:
logging.error("USB not available - cannot open device")
return False
try:
self.device = device_info['device']
# Detach kernel driver if active
if self.device.is_kernel_driver_active(0):
self.device.detach_kernel_driver(0)
# Set configuration
self.device.set_configuration()
# Get CDC endpoints
cfg = self.device.get_active_configuration()
intf = cfg[(0,0)]
# Find bulk endpoints (CDC data interface)
self.ep_out = usb.util.find_descriptor(
intf,
custom_match=lambda e: usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_OUT
)
self.ep_in = usb.util.find_descriptor(
intf,
custom_match=lambda e: usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_IN
)
if self.ep_out is None or self.ep_in is None:
logging.error("Could not find CDC endpoints")
return False
self.is_open = True
logging.info(f"STM32 USB device opened: {device_info['description']}")
return True
except Exception as e:
logging.error(f"Error opening USB device: {e}")
return False
def send_start_flag(self):
"""Step 12: Send start flag to STM32 via USB"""
start_packet = bytes([23, 46, 158, 237])
logging.info("Sending start flag to STM32 via USB...")
return self._send_data(start_packet)
def send_settings(self, settings):
"""Step 13: Send radar settings to STM32 via USB"""
try:
packet = self._create_settings_packet(settings)
logging.info("Sending radar settings to STM32 via USB...")
return self._send_data(packet)
except Exception as e:
logging.error(f"Error sending settings via USB: {e}")
return False
def read_data(self, size=64, timeout=1000):
"""Read data from STM32 via USB"""
if not self.is_open or self.ep_in is None:
return None
try:
data = self.ep_in.read(size, timeout=timeout)
return bytes(data)
except usb.core.USBError as e:
if e.errno == 110: # Timeout
return None
logging.error(f"USB read error: {e}")
return None
except Exception as e:
logging.error(f"Error reading from USB: {e}")
return None
def _send_data(self, data):
"""Send data to STM32 via USB"""
if not self.is_open or self.ep_out is None:
return False
try:
# USB CDC typically uses 64-byte packets
packet_size = 64
for i in range(0, len(data), packet_size):
chunk = data[i:i + packet_size]
# Pad to packet size if needed
if len(chunk) < packet_size:
chunk += b'\x00' * (packet_size - len(chunk))
self.ep_out.write(chunk)
return True
except Exception as e:
logging.error(f"Error sending data via USB: {e}")
return False
def _create_settings_packet(self, settings):
"""Create binary settings packet for USB transmission"""
packet = b'SET'
packet += struct.pack('>d', settings.system_frequency)
packet += struct.pack('>d', settings.chirp_duration)
packet += struct.pack('>I', settings.chirps_per_position)
packet += struct.pack('>d', settings.freq_min)
packet += struct.pack('>d', settings.freq_max)
packet += struct.pack('>d', settings.prf1)
packet += struct.pack('>d', settings.prf2)
packet += struct.pack('>d', settings.max_distance)
packet += b'END'
return packet
def close(self):
"""Close USB device"""
if self.device and self.is_open:
try:
usb.util.dispose_resources(self.device)
self.is_open = False
except Exception as e:
logging.error(f"Error closing USB device: {e}")
class FTDIInterface:
def __init__(self):
self.ftdi = None
self.is_open = False
def list_devices(self):
"""List available FTDI devices using pyftdi"""
if not FTDI_AVAILABLE:
logging.warning("FTDI not available - please install pyftdi")
return []
try:
devices = []
# Get list of all FTDI devices
for device in UsbTools.find_all([(0x0403, 0x6010)]): # FT2232H vendor/product ID
devices.append({
'description': f"FTDI Device {device}",
'url': f"ftdi://{device}/1"
})
return devices
except Exception as e:
logging.error(f"Error listing FTDI devices: {e}")
# Return mock devices for testing
return [{'description': 'FT2232H Device A', 'url': 'ftdi://device/1'}]
def open_device(self, device_url):
"""Open FTDI device using pyftdi"""
if not FTDI_AVAILABLE:
logging.error("FTDI not available - cannot open device")
return False
try:
self.ftdi = Ftdi()
self.ftdi.open_from_url(device_url)
# Configure for synchronous FIFO mode
self.ftdi.set_bitmode(0xFF, Ftdi.BitMode.SYNCFF)
# Set latency timer
self.ftdi.set_latency_timer(2)
# Purge buffers
self.ftdi.purge_buffers()
self.is_open = True
logging.info(f"FTDI device opened: {device_url}")
return True
except Exception as e:
logging.error(f"Error opening FTDI device: {e}")
return False
def read_data(self, bytes_to_read):
"""Read data from FTDI"""
if not self.is_open or self.ftdi is None:
return None
try:
data = self.ftdi.read_data(bytes_to_read)
if data:
return bytes(data)
return None
except Exception as e:
logging.error(f"Error reading from FTDI: {e}")
return None
def close(self):
"""Close FTDI device"""
if self.ftdi and self.is_open:
self.ftdi.close()
self.is_open = False
class RadarProcessor:
def __init__(self):
self.range_doppler_map = np.zeros((1024, 32))
self.detected_targets = []
self.track_id_counter = 0
self.tracks = {}
self.frame_count = 0
def dual_cpi_fusion(self, range_profiles_1, range_profiles_2):
"""Dual-CPI fusion for better detection"""
fused_profile = np.mean(range_profiles_1, axis=0) + np.mean(range_profiles_2, axis=0)
return fused_profile
def multi_prf_unwrap(self, doppler_measurements, prf1, prf2):
"""Multi-PRF velocity unwrapping"""
lambda_wavelength = 3e8 / 10e9
v_max1 = prf1 * lambda_wavelength / 2
v_max2 = prf2 * lambda_wavelength / 2
unwrapped_velocities = []
for doppler in doppler_measurements:
v1 = doppler * lambda_wavelength / 2
v2 = doppler * lambda_wavelength / 2
velocity = self._solve_chinese_remainder(v1, v2, v_max1, v_max2)
unwrapped_velocities.append(velocity)
return unwrapped_velocities
def _solve_chinese_remainder(self, v1, v2, max1, max2):
for k in range(-5, 6):
candidate = v1 + k * max1
if abs(candidate - v2) < max2 / 2:
return candidate
return v1
def clustering(self, detections, eps=100, min_samples=2):
"""DBSCAN clustering of detections"""
if len(detections) == 0:
return []
points = np.array([[d.range, d.velocity] for d in detections])
clustering = DBSCAN(eps=eps, min_samples=min_samples).fit(points)
clusters = []
for label in set(clustering.labels_):
if label != -1:
cluster_points = points[clustering.labels_ == label]
clusters.append({
'center': np.mean(cluster_points, axis=0),
'points': cluster_points,
'size': len(cluster_points)
})
return clusters
def association(self, detections, clusters):
"""Association of detections to tracks"""
associated_detections = []
for detection in detections:
best_track = None
min_distance = float('inf')
for track_id, track in self.tracks.items():
distance = np.sqrt(
(detection.range - track['state'][0])**2 +
(detection.velocity - track['state'][2])**2
)
if distance < min_distance and distance < 500:
min_distance = distance
best_track = track_id
if best_track is not None:
detection.track_id = best_track
associated_detections.append(detection)
else:
detection.track_id = self.track_id_counter
self.track_id_counter += 1
associated_detections.append(detection)
return associated_detections
def tracking(self, associated_detections):
"""Kalman filter tracking"""
current_time = time.time()
for detection in associated_detections:
if detection.track_id not in self.tracks:
kf = KalmanFilter(dim_x=4, dim_z=2)
kf.x = np.array([detection.range, 0, detection.velocity, 0])
kf.F = np.array([[1, 1, 0, 0],
[0, 1, 0, 0],
[0, 0, 1, 1],
[0, 0, 0, 1]])
kf.H = np.array([[1, 0, 0, 0],
[0, 0, 1, 0]])
kf.P *= 1000
kf.R = np.diag([10, 1])
kf.Q = np.eye(4) * 0.1
self.tracks[detection.track_id] = {
'filter': kf,
'state': kf.x,
'last_update': current_time,
'hits': 1
}
else:
track = self.tracks[detection.track_id]
track['filter'].predict()
track['filter'].update([detection.range, detection.velocity])
track['state'] = track['filter'].x
track['last_update'] = current_time
track['hits'] += 1
stale_tracks = [tid for tid, track in self.tracks.items()
if current_time - track['last_update'] > 5.0]
for tid in stale_tracks:
del self.tracks[tid]
class USBPacketParser:
def __init__(self):
self.crc16_func = crcmod.mkCrcFun(0x11021, rev=False, initCrc=0xFFFF, xorOut=0x0000)
def parse_gps_data(self, data):
"""Parse GPS data from STM32 USB CDC"""
if not data:
return None
try:
# Try text format first: "GPS:lat,lon,alt\r\n"
text_data = data.decode('utf-8', errors='ignore').strip()
if text_data.startswith('GPS:'):
parts = text_data.split(':')[1].split(',')
if len(parts) == 3:
lat = float(parts[0])
lon = float(parts[1])
alt = float(parts[2])
return GPSData(latitude=lat, longitude=lon, altitude=alt, timestamp=time.time())
# Try binary format
if len(data) >= 26 and data[0:4] == b'GPSB':
return self._parse_binary_gps(data)
except Exception as e:
logging.error(f"Error parsing GPS data: {e}")
return None
def _parse_binary_gps(self, data):
"""Parse binary GPS format"""
try:
# Binary format: [Header 4][Latitude 8][Longitude 8][Altitude 4][CRC 2]
if len(data) < 26:
return None
# Verify CRC (simple checksum)
crc_received = (data[24] << 8) | data[25]
crc_calculated = sum(data[0:24]) & 0xFFFF
if crc_received != crc_calculated:
logging.warning("GPS CRC mismatch")
return None
# Parse latitude (double, big-endian)
lat_bits = 0
for i in range(8):
lat_bits = (lat_bits << 8) | data[4 + i]
latitude = struct.unpack('>d', struct.pack('>Q', lat_bits))[0]
# Parse longitude (double, big-endian)
lon_bits = 0
for i in range(8):
lon_bits = (lon_bits << 8) | data[12 + i]
longitude = struct.unpack('>d', struct.pack('>Q', lon_bits))[0]
# Parse altitude (float, big-endian)
alt_bits = 0
for i in range(4):
alt_bits = (alt_bits << 8) | data[20 + i]
altitude = struct.unpack('>f', struct.pack('>I', alt_bits))[0]
return GPSData(latitude=latitude, longitude=longitude, altitude=altitude, timestamp=time.time())
except Exception as e:
logging.error(f"Error parsing binary GPS: {e}")
return None
class RadarPacketParser:
def __init__(self):
self.sync_pattern = b'\xA5\xC3'
self.crc16_func = crcmod.mkCrcFun(0x11021, rev=False, initCrc=0xFFFF, xorOut=0x0000)
def parse_packet(self, data):
if len(data) < 6:
return None
sync_index = data.find(self.sync_pattern)
if sync_index == -1:
return None
packet = data[sync_index:]
if len(packet) < 6:
return None
sync = packet[0:2]
packet_type = packet[2]
length = packet[3]
if len(packet) < (4 + length + 2):
return None
payload = packet[4:4+length]
crc_received = struct.unpack('<H', packet[4+length:4+length+2])[0]
crc_calculated = self.calculate_crc(packet[0:4+length])
if crc_calculated != crc_received:
logging.warning(f"CRC mismatch: got {crc_received:04X}, calculated {crc_calculated:04X}")
return None
if packet_type == 0x01:
return self.parse_range_packet(payload)
elif packet_type == 0x02:
return self.parse_doppler_packet(payload)
elif packet_type == 0x03:
return self.parse_detection_packet(payload)
else:
logging.warning(f"Unknown packet type: {packet_type:02X}")
return None
def calculate_crc(self, data):
return self.crc16_func(data)
def parse_range_packet(self, payload):
if len(payload) < 12:
return None
try:
range_value = struct.unpack('>I', payload[0:4])[0]
elevation = payload[4] & 0x1F
azimuth = payload[5] & 0x3F
chirp_counter = payload[6] & 0x1F
return {
'type': 'range',
'range': range_value,
'elevation': elevation,
'azimuth': azimuth,
'chirp': chirp_counter,
'timestamp': time.time()
}
except Exception as e:
logging.error(f"Error parsing range packet: {e}")
return None
def parse_doppler_packet(self, payload):
if len(payload) < 12:
return None
try:
doppler_real = struct.unpack('>h', payload[0:2])[0]
doppler_imag = struct.unpack('>h', payload[2:4])[0]
elevation = payload[4] & 0x1F
azimuth = payload[5] & 0x3F
chirp_counter = payload[6] & 0x1F
return {
'type': 'doppler',
'doppler_real': doppler_real,
'doppler_imag': doppler_imag,
'elevation': elevation,
'azimuth': azimuth,
'chirp': chirp_counter,
'timestamp': time.time()
}
except Exception as e:
logging.error(f"Error parsing Doppler packet: {e}")
return None
def parse_detection_packet(self, payload):
if len(payload) < 8:
return None
try:
detection_flag = (payload[0] & 0x01) != 0
elevation = payload[1] & 0x1F
azimuth = payload[2] & 0x3F
chirp_counter = payload[3] & 0x1F
return {
'type': 'detection',
'detected': detection_flag,
'elevation': elevation,
'azimuth': azimuth,
'chirp': chirp_counter,
'timestamp': time.time()
}
except Exception as e:
logging.error(f"Error parsing detection packet: {e}")
return None
class RadarGUI:
def __init__(self, root):
self.root = root
self.root.title("Advanced Radar System GUI - USB CDC")
self.root.geometry("1400x900")
# Initialize interfaces
self.stm32_usb_interface = STM32USBInterface()
self.ftdi_interface = FTDIInterface()
self.radar_processor = RadarProcessor()
self.usb_packet_parser = USBPacketParser()
self.radar_packet_parser = RadarPacketParser()
self.settings = RadarSettings()
# Data queues
self.radar_data_queue = queue.Queue()
self.gps_data_queue = queue.Queue()
# Thread control
self.running = False
self.radar_thread = None
self.gps_thread = None
# Counters
self.received_packets = 0
self.current_gps = GPSData(latitude=41.9028, longitude=12.4964, altitude=0, timestamp=0)
self.create_gui()
self.start_background_threads()
def create_gui(self):
"""Create the main GUI with tabs"""
self.notebook = ttk.Notebook(self.root)
self.notebook.pack(fill='both', expand=True, padx=10, pady=10)
self.tab_main = ttk.Frame(self.notebook)
self.tab_map = ttk.Frame(self.notebook)
self.tab_diagnostics = ttk.Frame(self.notebook)
self.tab_settings = ttk.Frame(self.notebook)
self.notebook.add(self.tab_main, text='Main View')
self.notebook.add(self.tab_map, text='Map View')
self.notebook.add(self.tab_diagnostics, text='Diagnostics')
self.notebook.add(self.tab_settings, text='Settings')
self.setup_main_tab()
self.setup_map_tab()
self.setup_settings_tab()
def setup_main_tab(self):
"""Setup the main radar display tab"""
# Control frame
control_frame = ttk.Frame(self.tab_main)
control_frame.pack(fill='x', padx=10, pady=5)
# USB Device selection
ttk.Label(control_frame, text="STM32 USB Device:").grid(row=0, column=0, padx=5)
self.stm32_usb_combo = ttk.Combobox(control_frame, state="readonly", width=40)
self.stm32_usb_combo.grid(row=0, column=1, padx=5)
ttk.Label(control_frame, text="FTDI Device:").grid(row=0, column=2, padx=5)
self.ftdi_combo = ttk.Combobox(control_frame, state="readonly", width=30)
self.ftdi_combo.grid(row=0, column=3, padx=5)
ttk.Button(control_frame, text="Refresh Devices",
command=self.refresh_devices).grid(row=0, column=4, padx=5)
self.start_button = ttk.Button(control_frame, text="Start Radar",
command=self.start_radar)
self.start_button.grid(row=0, column=5, padx=5)
self.stop_button = ttk.Button(control_frame, text="Stop Radar",
command=self.stop_radar, state="disabled")
self.stop_button.grid(row=0, column=6, padx=5)
# GPS info
self.gps_label = ttk.Label(control_frame, text="GPS: Waiting for data...")
self.gps_label.grid(row=1, column=0, columnspan=4, sticky='w', padx=5, pady=2)
# Status info
self.status_label = ttk.Label(control_frame, text="Status: Ready")
self.status_label.grid(row=1, column=4, columnspan=3, sticky='e', padx=5, pady=2)
# Main display area
display_frame = ttk.Frame(self.tab_main)
display_frame.pack(fill='both', expand=True, padx=10, pady=5)
# Range-Doppler Map
fig = Figure(figsize=(10, 6))
self.range_doppler_ax = fig.add_subplot(111)
self.range_doppler_plot = self.range_doppler_ax.imshow(
np.random.rand(1024, 32), aspect='auto', cmap='hot',
extent=[0, 32, 0, 1024])
self.range_doppler_ax.set_title('Range-Doppler Map')
self.range_doppler_ax.set_xlabel('Doppler Bin')
self.range_doppler_ax.set_ylabel('Range Bin')
self.canvas = FigureCanvasTkAgg(fig, display_frame)
self.canvas.draw()
self.canvas.get_tk_widget().pack(side='left', fill='both', expand=True)
# Targets list
targets_frame = ttk.LabelFrame(display_frame, text="Detected Targets")
targets_frame.pack(side='right', fill='y', padx=5)
self.targets_tree = ttk.Treeview(targets_frame,
columns=('ID', 'Range', 'Velocity', 'Azimuth', 'Elevation', 'SNR'),
show='headings', height=20)
self.targets_tree.heading('ID', text='Track ID')
self.targets_tree.heading('Range', text='Range (m)')
self.targets_tree.heading('Velocity', text='Velocity (m/s)')
self.targets_tree.heading('Azimuth', text='Azimuth')
self.targets_tree.heading('Elevation', text='Elevation')
self.targets_tree.heading('SNR', text='SNR (dB)')
self.targets_tree.column('ID', width=80)
self.targets_tree.column('Range', width=100)
self.targets_tree.column('Velocity', width=100)
self.targets_tree.column('Azimuth', width=80)
self.targets_tree.column('Elevation', width=80)
self.targets_tree.column('SNR', width=80)
self.targets_tree.pack(fill='both', expand=True, padx=5, pady=5)
def setup_map_tab(self):
"""Setup the map display tab"""
self.map_frame = ttk.Frame(self.tab_map)
self.map_frame.pack(fill='both', expand=True, padx=10, pady=10)
# Map placeholder
self.map_label = ttk.Label(self.map_frame, text="Map will be displayed here after GPS data is received",
font=('Arial', 12))
self.map_label.pack(expand=True)
def setup_settings_tab(self):
"""Setup the settings tab"""
settings_frame = ttk.Frame(self.tab_settings)
settings_frame.pack(fill='both', expand=True, padx=10, pady=10)
entries = [
('System Frequency (Hz):', 'system_frequency', 10e9),
('Chirp Duration (s):', 'chirp_duration', 30e-6),
('Chirps per Position:', 'chirps_per_position', 32),
('Frequency Min (Hz):', 'freq_min', 10e6),
('Frequency Max (Hz):', 'freq_max', 30e6),
('PRF1 (Hz):', 'prf1', 1000),
('PRF2 (Hz):', 'prf2', 2000),
('Max Distance (m):', 'max_distance', 50000)
]
self.settings_vars = {}
for i, (label, attr, default) in enumerate(entries):
ttk.Label(settings_frame, text=label).grid(row=i, column=0, sticky='w', padx=5, pady=5)
var = tk.StringVar(value=str(default))
entry = ttk.Entry(settings_frame, textvariable=var, width=20)
entry.grid(row=i, column=1, padx=5, pady=5)
self.settings_vars[attr] = var
ttk.Button(settings_frame, text="Apply Settings",
command=self.apply_settings).grid(row=len(entries), column=0, columnspan=2, pady=10)
def refresh_devices(self):
"""Refresh available USB devices"""
# STM32 USB devices
stm32_devices = self.stm32_usb_interface.list_devices()
stm32_names = [dev['description'] for dev in stm32_devices]
self.stm32_usb_combo['values'] = stm32_names
# FTDI devices
ftdi_devices = self.ftdi_interface.list_devices()
ftdi_names = [dev['description'] for dev in ftdi_devices]
self.ftdi_combo['values'] = ftdi_names
if stm32_names:
self.stm32_usb_combo.current(0)
if ftdi_names:
self.ftdi_combo.current(0)
def start_radar(self):
"""Step 11: Start button pressed - Begin radar operation"""
try:
# Open STM32 USB device
stm32_index = self.stm32_usb_combo.current()
if stm32_index == -1:
messagebox.showerror("Error", "Please select an STM32 USB device")
return
stm32_devices = self.stm32_usb_interface.list_devices()
if stm32_index >= len(stm32_devices):
messagebox.showerror("Error", "Invalid STM32 device selection")
return
if not self.stm32_usb_interface.open_device(stm32_devices[stm32_index]):
messagebox.showerror("Error", "Failed to open STM32 USB device")
return
# Open FTDI device
if FTDI_AVAILABLE:
ftdi_index = self.ftdi_combo.current()
if ftdi_index != -1:
ftdi_devices = self.ftdi_interface.list_devices()
if ftdi_index < len(ftdi_devices):
device_url = ftdi_devices[ftdi_index]['url']
if not self.ftdi_interface.open_device(device_url):
logging.warning("Failed to open FTDI device, continuing without radar data")
else:
logging.warning("No FTDI device selected, continuing without radar data")
else:
logging.warning("FTDI not available, continuing without radar data")
# Step 12: Send start flag to STM32 via USB
if not self.stm32_usb_interface.send_start_flag():
messagebox.showerror("Error", "Failed to send start flag to STM32")
return
# Step 13: Send settings to STM32 via USB
self.apply_settings()
# Start radar operation
self.running = True
self.start_button.config(state="disabled")
self.stop_button.config(state="normal")
self.status_label.config(text="Status: Radar running - Waiting for GPS data...")
logging.info("Radar system started successfully via USB CDC")
except Exception as e:
messagebox.showerror("Error", f"Failed to start radar: {e}")
logging.error(f"Start radar error: {e}")
def stop_radar(self):
"""Stop radar operation"""
self.running = False
self.start_button.config(state="normal")
self.stop_button.config(state="disabled")
self.status_label.config(text="Status: Radar stopped")
self.stm32_usb_interface.close()
self.ftdi_interface.close()
logging.info("Radar system stopped")
def apply_settings(self):
"""Step 13: Apply and send radar settings via USB"""
try:
self.settings.system_frequency = float(self.settings_vars['system_frequency'].get())
self.settings.chirp_duration = float(self.settings_vars['chirp_duration'].get())
self.settings.chirps_per_position = int(self.settings_vars['chirps_per_position'].get())
self.settings.freq_min = float(self.settings_vars['freq_min'].get())
self.settings.freq_max = float(self.settings_vars['freq_max'].get())
self.settings.prf1 = float(self.settings_vars['prf1'].get())
self.settings.prf2 = float(self.settings_vars['prf2'].get())
self.settings.max_distance = float(self.settings_vars['max_distance'].get())
if self.stm32_usb_interface.is_open:
self.stm32_usb_interface.send_settings(self.settings)
messagebox.showinfo("Success", "Settings applied and sent to STM32 via USB")
logging.info("Radar settings applied via USB")
except ValueError as e:
messagebox.showerror("Error", f"Invalid setting value: {e}")
def start_background_threads(self):
"""Start background data processing threads"""
self.radar_thread = threading.Thread(target=self.process_radar_data, daemon=True)
self.radar_thread.start()
self.gps_thread = threading.Thread(target=self.process_gps_data, daemon=True)
self.gps_thread.start()
self.root.after(100, self.update_gui)
def process_radar_data(self):
"""Step 39: Process incoming radar data from FTDI"""
buffer = b''
while True:
if self.running and self.ftdi_interface.is_open:
try:
data = self.ftdi_interface.read_data(4096)
if data:
buffer += data
while len(buffer) >= 6:
packet = self.radar_packet_parser.parse_packet(buffer)
if packet:
self.process_radar_packet(packet)
packet_length = 4 + len(packet.get('payload', b'')) + 2
buffer = buffer[packet_length:]
self.received_packets += 1
else:
break
except Exception as e:
logging.error(f"Error processing radar data: {e}")
time.sleep(0.1)
else:
time.sleep(0.1)
def process_gps_data(self):
"""Step 16/17: Process GPS data from STM32 via USB CDC"""
while True:
if self.running and self.stm32_usb_interface.is_open:
try:
# Read data from STM32 USB
data = self.stm32_usb_interface.read_data(64, timeout=100)
if data:
gps_data = self.usb_packet_parser.parse_gps_data(data)
if gps_data:
self.gps_data_queue.put(gps_data)
logging.info(f"GPS Data received via USB: Lat {gps_data.latitude:.6f}, Lon {gps_data.longitude:.6f}, Alt {gps_data.altitude:.1f}m")
except Exception as e:
logging.error(f"Error processing GPS data via USB: {e}")
time.sleep(0.1)
def process_radar_packet(self, packet):
"""Step 40: Process radar data and update displays"""
try:
if packet['type'] == 'range':
range_meters = packet['range'] * 0.1
target = RadarTarget(
id=packet['chirp'],
range=range_meters,
velocity=0,
azimuth=packet['azimuth'],
elevation=packet['elevation'],
snr=20.0,
timestamp=packet['timestamp']
)
self.update_range_doppler_map(target)
elif packet['type'] == 'doppler':
lambda_wavelength = 3e8 / self.settings.system_frequency
velocity = (packet['doppler_real'] / 32767.0) * (self.settings.prf1 * lambda_wavelength / 2)
self.update_target_velocity(packet, velocity)
elif packet['type'] == 'detection':
if packet['detected']:
logging.info(f"CFAR Detection: Elevation {packet['elevation']}, Azimuth {packet['azimuth']}")
except Exception as e:
logging.error(f"Error processing radar packet: {e}")
def update_range_doppler_map(self, target):
"""Update range-Doppler map with new target"""
range_bin = min(int(target.range / 50), 1023)
doppler_bin = min(abs(int(target.velocity)), 31)
self.radar_processor.range_doppler_map[range_bin, doppler_bin] += 1
self.radar_processor.detected_targets.append(target)
if len(self.radar_processor.detected_targets) > 100:
self.radar_processor.detected_targets = self.radar_processor.detected_targets[-100:]
def update_target_velocity(self, packet, velocity):
"""Update target velocity information"""
for target in self.radar_processor.detected_targets:
if (target.azimuth == packet['azimuth'] and
target.elevation == packet['elevation'] and
target.id == packet['chirp']):
target.velocity = velocity
break
def update_gui(self):
"""Step 40: Update all GUI displays"""
try:
# Update status
if self.running:
self.status_label.config(
text=f"Status: Running - Packets: {self.received_packets} - GPS: {self.current_gps.latitude:.4f}, {self.current_gps.longitude:.4f}")
# Update range-Doppler map
if hasattr(self, 'range_doppler_plot'):
display_data = np.log10(self.radar_processor.range_doppler_map + 1)
self.range_doppler_plot.set_array(display_data)
self.canvas.draw_idle()
# Update targets list
self.update_targets_list()
# Update GPS display
self.update_gps_display()
except Exception as e:
logging.error(f"Error updating GUI: {e}")
self.root.after(100, self.update_gui)
def update_targets_list(self):
"""Update the targets list display"""
for item in self.targets_tree.get_children():
self.targets_tree.delete(item)
for target in self.radar_processor.detected_targets[-20:]:
self.targets_tree.insert('', 'end', values=(
target.track_id,
f"{target.range:.1f}",
f"{target.velocity:.1f}",
target.azimuth,
target.elevation,
f"{target.snr:.1f}"
))
def update_gps_display(self):
"""Step 18: Update GPS display and center map"""
try:
while not self.gps_data_queue.empty():
gps_data = self.gps_data_queue.get_nowait()
self.current_gps = gps_data
# Update GPS label
self.gps_label.config(
text=f"GPS: Lat {gps_data.latitude:.6f}, Lon {gps_data.longitude:.6f}, Alt {gps_data.altitude:.1f}m")
# Update map
self.update_map_display(gps_data)
except queue.Empty:
pass
def update_map_display(self, gps_data):
"""Step 18: Update map display with current GPS position"""
try:
self.map_label.config(text=f"Radar Position: {gps_data.latitude:.6f}, {gps_data.longitude:.6f}\n"
f"Altitude: {gps_data.altitude:.1f}m\n"
f"Coverage: 50km radius\n"
f"Map centered on GPS coordinates")
except Exception as e:
logging.error(f"Error updating map display: {e}")
def main():
"""Main application entry point"""
try:
root = tk.Tk()
app = RadarGUI(root)
root.mainloop()
except Exception as e:
logging.error(f"Application error: {e}")
messagebox.showerror("Fatal Error", f"Application failed to start: {e}")
if __name__ == "__main__":
main()