Table 1 Data acquisition sensor
From: A driver’s car-following behavior prediction model based on multi-sensors data
Instrument name | Function | Technical index |
|---|---|---|
Millimeter-wave radar (ESR) | Relative distance from the car ahead, relative angle, relative speed | Precision of distance measurement is 0.25 m and angle precision is 0.5° |
Video monitoring system | Action monitoring of driver’s foot, operation behavior, and forward and backward scenes | Frequency is 25 Hz with synchronous storage |
GPS system (VBOX) | Acquisition of the concrete location of the test car and real-time speed of the car | Positioning precision is 0.5 m |
CAN acquisition card | Acquisition of the CAN data of the car | Car speed is 0.01 km/h; steering wheel angle is 1.0°, and the opening degree of accelerator pedal is 0.1%. Braking signal and turn lamp signal are acquired. |