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| """ 基于 VENTUNO Q 的 DMS 原型搭建 利用预装模型快速构建
硬件需求: - VENTUNO Q - MIPI-CSI 摄像头 (IR + RGB) - CAN-FD 接口(车辆数据) """
import numpy as np import time from typing import Optional
class VentunoQDMS: """VENTUNO Q DMS 原型框架""" def __init__(self): self.face_model = "SCRFD_2.5g" self.landmark_model = "PFLD_68" self.gaze_model = "GazeNet" self.object_model = "YoloX_s" self.gesture_model = "MediaPipe" self.npu_backend = "qualcomm_ai_hub" self.precision = "int8" self.target_fps = 30 self.state = "normal" self.fatigue_score = 0 self.distraction_score = 0 self.phone_use_score = 0 def initialize(self): """初始化模型""" print("=== VENTUNO Q DMS 初始化 ===") models = [ (self.face_model, "人脸检测", 5.2), (self.landmark_model, "关键点", 3.8), (self.gaze_model, "视线估计", 8.5), (self.object_model, "物体检测", 4.0), (self.gesture_model, "手势识别", 2.0), ] total_gops = sum(g for _, _, g in models) total_tops = total_gops * self.target_fps / 1000 print(f"模型加载:") for name, desc, gops in models: print(f" ✅ {desc} ({name}): {gops} GOPS") print(f"\n总算力需求: {total_tops:.2f} TOPS") print(f"VENTUNO Q NPU: 40 TOPS") print(f"利用率: {total_tops/40*100:.1f}%") print(f"剩余: {40-total_tops:.2f} TOPS") def process_frame(self, frame: np.ndarray) -> dict: """ 处理一帧画面 实际在 VENTUNO Q 上通过 Qualcomm AI Hub 执行 """ t0 = time.time() faces = self._detect_faces(frame) results = { "face_detected": False, "gaze_direction": None, "eye_openness": None, "phone_detected": False, "head_pose": None, "timestamp": time.time(), } if faces: results["face_detected"] = True face_box = faces[0] landmarks = self._extract_landmarks(frame, face_box) ear = self._calculate_ear(landmarks) results["eye_openness"] = ear gaze = self._estimate_gaze(frame, landmarks) results["gaze_direction"] = gaze results["head_pose"] = self._estimate_head_pose(landmarks) objects = self._detect_objects(frame) results["phone_detected"] = any( o["class"] == "phone" for o in objects ) self._update_scores(results) latency = (time.time() - t0) * 1000 results["latency_ms"] = latency results["state"] = self.state return results def _detect_faces(self, frame): """人脸检测(NPU加速)""" return [{"x": 100, "y": 80, "w": 120, "h": 150}] def _extract_landmarks(self, frame, box): return np.random.randn(68, 2) def _calculate_ear(self, landmarks): """计算眼睛纵横比(EAR)""" left_eye = landmarks[36:42] right_eye = landmarks[42:48] ear = 0.25 return ear def _estimate_gaze(self, frame, landmarks): return {"pitch": 0.1, "yaw": -0.05} def _estimate_head_pose(self, landmarks): return {"pitch": 5, "yaw": -3, "roll": 0} def _detect_objects(self, frame): return [] def _update_scores(self, results): """更新评分""" if results["eye_openness"] and results["eye_openness"] < 0.2: self.fatigue_score += 1 else: self.fatigue_score = max(0, self.fatigue_score - 0.5) if results["gaze_direction"]: yaw = abs(results["gaze_direction"]["yaw"]) if yaw > 0.3: self.distraction_score += 1 else: self.distraction_score = max(0, self.distraction_score - 0.5) if results["phone_detected"]: self.phone_use_score = 100 if self.fatigue_score > 60: self.state = "fatigue_warning" elif self.distraction_score > 60: self.state = "distraction_warning" elif self.phone_use_score > 50: self.state = "phone_use_warning" else: self.state = "normal"
dms = VentunoQDMS() dms.initialize()
print("\n=== 帧处理测试 ===") frame = np.random.randn(1080, 1920, 3) result = dms.process_frame(frame) print(f"状态: {result['state']}") print(f"延迟: {result['latency_ms']:.1f}ms") print(f"人脸检测: {result['face_detected']}")
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