| 摘要 |
Vehicle data recorder system including method and apparatus which, without constant attention of the operator, makes a printed recording of the velocity, direction of travel of each vehicle actuating the recorder and the time of day each vehicle actuates the recorder. One preferred embodiment has concentric printing platens which move relative to one another and relative to a printing zone so that the current time of day and the velocity of the actuating vehicle are simultaneously disposed within the printing zone. A clock mechanism determines the position of the time of day platen so that the correct time of day is in the printing zone. Spaced vehicle sensors serially sense a moving vehicle and generate an electrical signal which causes the velocity printing platen to move until the vehicle velocity is within the printing zone. A predetermined sequence of activation of the sensors causes the direction of travel of be printed. A total vehicle count is accumulated on a tabular readout. Another presently preferred embodiment converts the vehicle speed and time of day into encoded pulses which actuate a punch or printer to encode punch tape or print out with the data described above.
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