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    • 41. 发明授权
    • Alarm device for informing reduction of pneumatic pressure of vehicle
tires
    • 用于通知减少车辆轮胎气压的报警装置
    • US4267546A
    • 1981-05-12
    • US49829
    • 1979-06-18
    • Akira MatsudaNorio GoshimaShigeo YasudaMotoaki IwasakiHiroshi Nishino
    • Akira MatsudaNorio GoshimaShigeo YasudaMotoaki IwasakiHiroshi Nishino
    • G08C19/00B60C23/02B60C23/04G01L17/00G08B21/00
    • B60C23/0408
    • An alarm device for signalling a reduction of pneumatic pressure of vehicle tires comprises an oscillator 6 having coil secured to a chassis of a vehicle, and a resonator 1 secured to the peripheral portion of a wheel having a tire adjacent to the coil and consisting of a pressure switch 4 for sensing an abnormal change of tire pressure, and a resonant coil and a capacitor 5 tuned to an electromagnetic wave radiated from the oscillation coil. A signal processing device contains means for sensing a change in an oscillation condition generated in the oscillator due to a resonant condition of the resonator switched on and off in accordance with abnormal internal tire pressure and for processing a signal from the sensing means, and an alarm for generating a warning signal in accordance with the output of the signal processing device. The latter comprises an input section 21 having a desired number of terminals, a signal processing section 22 having an arithmetic circuit connected to the input section, a resettable latch circuit 26, 31, and an alarm section 23 operated by the output of the latch circuit whereby an alarm signal is not generated when the speed of the vehicle becomes lower than the prescribed threshold value at normal internal pressure.
    • 用于指示车辆轮胎的气压降低的报警装置包括具有固定到车辆的底盘的线圈的振荡器6和固定到具有与线圈相邻的轮胎的轮的周边部分的谐振器1, 用于感测轮胎压力的异常变化的压力开关4以及调谐到从振荡线圈辐射的电磁波的谐振线圈和电容器5。 信号处理装置包括用于感测由于谐振器根据异常的内部轮胎压力而导通和断开的共振状态并且用于处理来自感测装置的信号而在振荡器中产生的振荡条件的变化的装置,以及报警 用于根据信号处理装置的输出产生警告信号。 后者包括具有期望数量的端子的输入部分21,具有连接到输入部分的运算电路的信号处理部分22,可复位锁存电路26,31和由锁存电路的输出操作的报警部分23 当在正常内部压力下车辆的速度变得低于规定的阈值时,不产生报警信号。
    • 43. 发明授权
    • Alarm device for informing reduction of pneumatic pressure of tire
    • 用于通知减少轮胎气压的报警装置
    • US4180795A
    • 1979-12-25
    • US859517
    • 1977-12-12
    • Akira MatsudaMakoto TanakaJunichi MurataShigeo YasudaHiroshi Nishino
    • Akira MatsudaMakoto TanakaJunichi MurataShigeo YasudaHiroshi Nishino
    • G01L17/00B60C23/02B60C23/04C07H15/04G08C19/00
    • C07H15/04B60C23/0428
    • An alarm device for informing reduction of pneumatic pressure of vehicle tires by sensing abnormal change of tire internal pressure of a vehicle when running by a pressure sensing switch, by converting the thus sensed abnormal change into an electric signal and by generating an alarm to an operator. This device comprises an oscillator having an oscillation coil fixed on a chassis side of the vehicle; a resonator consisting of a resonance coil and a capacitor fixed to a peripheral portion of the rotating wheel having tire adjacent the oscillation coil and for resonating with an electromagnetic wave radiated from the oscillation coil; a signal processing device containing a sensing means for sensing change in an oscillation condition generated in the oscillator due to a resonant condition of the resonator switched on and off in accordance with abnormal internal pressure of a tire and for processing a signal sensed by this sensing means; and an alarm for generating a warning by the output of this signal processing device.
    • 一种报警装置,用于通过检测由压力传感开关行驶时车辆的轮胎内部压力的异常变化,通过将这样检测到的异常变化转换为电信号并向操作者产生报警来通知车辆轮胎气动压力的降低 。 该装置包括具有固定在车辆的底盘侧上的振荡线圈的振荡器; 谐振器,其由谐振线圈和固定到具有轮胎的旋转轮的周边部分的电容器组成,轮胎与振荡线圈相邻并且与从振荡线圈辐射的电磁波谐振; 一种信号处理装置,包括用于感测由于根据轮胎的异常内部压力而导通和断开的谐振器的谐振条件在振荡器中产生的振荡条件的变化的感测装置,并且用于处理由该感测装置感测到的信号 ; 以及用于由该信号处理装置的输出产生警告的报警。