Non-contact road anger detection device based on millimeter wave radar

In-Vehicle Monitoring by Radar: A Review

“…Nasal breath sound recordings from a smartphone, ECG (PSL-iECG2) X2 (50×70 mm) [83] The upper left of the windshield 7.29 and 8.748 Pulse oximetry X4M300 (50×70 mm) [84] The lower left of the steering wheel 2.4 Self-assessment of the participant for being drowsy Not specified [94] Behind the seat 60 A pressure sensor is worn on the abdomen 50×50 mm [80] Under the steering wheel 77 ECG, Respiration belt IWR1843BOOST [79] Behind the seat 24 ECG Not specified [88] In the driver's seat Millimeter wave Camera, Wearable physiological detection instrument Not specified [67] Rearview mirror 77 Polar H10 heart monitor AWR1642BOOST [68] Rearview mirror 120 Spirometer Not specified [49] The left top side of the subjects' chest 60 A clinical reference sensor BSM6501K IWR6843 [62] Mobile holder (right side of steering wheel) 60 Air-flow, Temperature sensor XM132 (25×20 mm) [65], [69] In front of the chest of the main subject 60 ECG XM112 [71] On the steering wheel 4.3 Edan iM50 Not specified to assess their proposed algorithms for vital sign monitoring inside a car. As can be seen in Table IX, the most common ground truth for the evaluation of estimated HR is pulse oximetry.…”

“…Mechanical sensors can be divided into three common categories, including resistive [8], inductive [9], and capacitive [10]. Both resistive 2 Range-doppler map or timefrequency spectrum Artificial intelligence to detect occupied seats [3], [11]- [34] The amplitude of reflected signals Left-behind child [2], [35]- [48] BR and HR difference BR and HR estimation [49]- [51] Gesture recognition to assist drivers Micro-doppler features Artificial intelligence to detect gestures [52]- [59] Occupant status monitoring BR and/or HR estimation None [60]- [77] Sensor placement for accurate BR estimation [78]- [80] Vital sign monitoring in an ambulance [81] Drowsy driving detection [82]- [87] Biometric driver seat [79] Angry driver [88] Multiple targets vital sign monitoring [89], [90] Car vibrations suppression [62], [91]- [93] Changes in the reflected power Distracted driver detection by cellphone [82] Random body movement cancellation [62], [80], [94] Airbag [95] Range-doppler map Distracted/drowsy driver based on head motion [96]- [101] Range doppler map, Changes in the phase of signals Drowsy driver based on eye blink frequency [102]- [107] and inductive sensors have difficulty discriminating between humans and objects [3]. Capacitive sensors which can detect the dielectric dispersion effects on human tissues are prone to high false detections…”