A comprehensive examination is carried out to determine the basic system constraints and required operational characteristics for anticipatory sensing of impending automobile crashes. This is followed by consideration of a wide variety of possible sensing techniques and selection of those deserving of further study. Two methods are chosen, microwave radar and ultrasonic sonar, and the advantages, weaknesses, and uncertain areas of both are delineated. Realization of both sensors is described. The radar sensor, comprising standard microwave components and solid state circuitry, has been installed on a test vehicle for characterization. Results are promising, but preliminary; the complexity of the sensing task and the reliability demands on the system require extensive analysis and testing before a conclusion can be drawn as to overall viability. (Author)


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    Development of Anticipatory Automobile Crash Sensors

    J. B. Hopkins / F. R. Holmstrom / E. G. Apgar et al. | NTIS | 1971


    Development of anticipatory Automobile Crash Sensors

    by Hopkins / Holmstrom / Apgar et al. | NTIS | 1971


    Anticipatory crash sensors for passiv restraint deployment

    Hopkins, J.B. / Holstrom, F.R. | Tema Archive | 1972


    Development and Evaluation of Anticipatory Crash Sensors for Automobiles

    J. Hopkins / F. R. Holmstrom / M. Hazel et al. | NTIS | 1974