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    • 7. 发明授权
    • Electronic trip meter with an alarm for an automotive vehicle
    • 带有汽车报警器的电子行程表
    • US4244514A
    • 1981-01-13
    • US969310
    • 1978-12-13
    • Hiroyuki NomuraTakaaki MogiTeruo KawasakiMasanori MizoteKiyoshi YamakiTakashi OkaHideoki Matsuoka
    • Hiroyuki NomuraTakaaki MogiTeruo KawasakiMasanori MizoteKiyoshi YamakiTakashi OkaHideoki Matsuoka
    • G01C22/00G01C21/26G06F15/20G06M3/14
    • G01C21/26
    • An electronic trip meter with an alarm for an automotive vehicle comprises a travelled distance sensing circuit, a memory circuit, a modification circuit, comparators, an alarm, first and second counters, a subtractor, a display circuit, and other auxiliary circuits. A plurality of sub distances defined by guide points along a course and a total distance of the course are respectively preset in the memory circuit and the second counter. The second counter output signal indicates a distance remaining to the goal of the course for displaying the remaining distance. The modification circuit output signal indicates a distance shorter than a sub distance while the first counter output signal indicates a distance actually travelled. When the vehicle travells over the distance shorter than the sub distance, the alarm is energized, by means of a comparison of the distances for informing the driver that a next guide point is near. Simultaneously, a distance remaining to the next guide point is displayed for a predetermined period of time.
    • 具有汽车警报的电子行程表包括行驶距离检测电路,存储电路,修改电路,比较器,报警器,第一和第二计数器,减法器,显示电路和其他辅助电路。 沿着课程的引导点和课程的总距离限定的多个子距离分别预设在存储器电路和第二计数器中。 第二计数器输出信号表示剩余距离的剩余距离。 修改电路输出信号表示比子距离短的距离,而第一计数器输出信号指示实际行进的距离。 当车辆行驶距离短于副距离的距离时,通过比较用于通知驾驶员下一个引导点靠近的距离来报警。 同时,在预定的时间段内显示剩余到下一个引导点的距离。