Car/ Aircraft Comparison(cont Operator selectivity/training/medical +High LoW Tracking precision(Heading) H Order 5 o- Order1° Recurrent training 以Y Oo- No Operations procedure Yes No Impaired operators(Alcohol, Drugs □0rer10710 Order1104·105
Car / Aircraft Comparison (cont.) • Operator selectivity/training/medical High Low • Tracking precision (Heading) Order 5° Order 1° • Recurrent training Yes No • Operations procedure Yes No • Impaired operators (Alcohol, Drugs) Order 1/10 7 - 10 9 Order 1/10 4 - 10 5
Aerospace Systems Applicable to Cars Control systems Navigation systems ABS GPS, DGPS Stability augmentation IRS/GPS Fly by Wire/Light(FBW, FBL Situation awareness displays Integrity Concerns(eg 777) Moving map Critical software systems Database Fault tolerant systems Caution and Warning Head up displays(HUD) Systems Helmet mounted displays Collision Alerting Systems (HMD) Tactile alerting Synthetic Vision Systems Stick shaker Sensor Fusion · Master caution Hands on throttle and stick Information accessibility Maintenance Diagnostics (HOTAS) Dark cockpit
Aerospace Systems Applicable to Cars • Control systems – ABS – Stability augmentation • Fly by Wire/Light (FBW,FBL) – Integrity Concerns (eg 777) • Critical software systems • Fault tolerant systems • Head up displays (HUD) • Helmet mounted displays (HMD) • Synthetic Vision Systems • Sensor Fusion • Hands on throttle and stick (HOTAS) • Dark cockpit • Navigation systems – GPS, DGPS – IRS/GPS • Situation awareness displays – Moving map – Database • Caution and Warning Systems • Collision Alerting Systems • Tactile alerting – Stick shaker • Master caution – Information accessibility – Maintenance Diagnostics
Example: Phase Carrier Differential ePsin automobiles 5em Demonstrate Slip Angle measureme na Perfor ce Evaluaticha el unary Testing IsSu: ghuynamic Envi gh ek" Stat With Prof. Jon How Dept of Aeronautics Astronautics
Example:Phase Carrier Differential GPS in Automobiles • High Precision (5 cm) – Demonstrated in UAV Applications • Slip Angle Measurement – Dual Antenna • Performance Evaluation • Preliminary Testing Issues – High Dynamic Environment – High “Jerk” States With Prof. Jon How Dept of Aeronautics & Astronautics
Track Hardware layout Two 2 GPS antennas were mounted on the car to form a single baseline Data-Linc Group(SRM6000)Modem antenna also attached to roll bar Real-time communication with ground station
Track Hardware Layout • Two 2 GPS antennas were mounted on the car to form a single baseline • Data-Linc Group (SRM6000) Modem antenna also attached to roll bar – Real-time communication with ground station
MIT Run results ← Medium Speed Sp 20 Start/ Stop Points(please zoom in) 10
MIT Run Results