Speedometer capable of providing real-time speed pulse signals
OwnerYang R. Liinventor
Life of this patent
Estimating the term…
Abstract
A speedometer capable of providing real-time speed signals, that can be combined with different functional devices and speed control units, to facilitate the automatic recording and controlling of the speed, thereby forming a multifunctional automatic monitoring and controlling device for vehicles. Photoelectric sensors are disposed in the conventional mechanical magnet-type speedometer, and a LED is mounted on the speed indicating needle shaft. The ON and OFF states of the LED can be controlled by a signal from within or from external of the vehicle. The output of the photosensors are connected to a multichannel photoelectric converter.
Claims14
A speedometer providing real-time speed signals, comprising a magnet-type speed transmitting portion, a speed indicating portion, a photoelectric monitoring portion and a speed signal conversion portion;
- said speed transmitting portion having a driving flexible shaft connected to a driving shaft, the driving shaft being fitted with a permanent magnet magnetically-coupled with an iron cup, the iron cup being fitted with a speed indicating needle shaft;
- said speed indicating portion having a photoelectric speed indicating needle connected to said speed indicating needle shaft, a speed indicating dial being positioned under the photoelectric speed indicating needle;
- said photoelectric monitoring portion comprising:
- a LED disposed on the speed indicating needle shaft, the light emitted from the LED travels through the photoelectric speed indicating needle, and transmitted out from the photoelectric speed indicating needle;
- a plurality of photoelectric sensors positioned on the periphery of the indicating dial at locations corresponding to the speed marks, said plurality of photoelectric sensors functioning to receive the light from the speed indicating needle and provide electric signals;
- said speed signal conversion portion comprising:
- a multichannel photoelectric converter connected to said photoelectric sensors at their terminals;
- a coder including an interface, and a photoelectric amplifier including an interface, connected to the outputs of said multichannel photoelectric converter, respectively, to form sets of interfaces for providing real-time speed signals.
A speedometer providing real-time speed signals, comprising a magnet-type speed transmitting portion, a speed indicating portion, a photoelectric monitoring portion and a speed signal conversion portion;
- said speed transmitting portion having a driving flexible shaft connected to a driving shaft, the driving shaft being fitted with a permanent magnet magnetically-coupled with an iron cup, and said iron cup being fitted with a speed indicating needle shaft;
- said photoelectric monitoring portion comprising:
- a first speed indicating needle functioned as a photoelectric speed indicating needle having a 45 degree mirror and a converging lens, and being positioned under the speed indicating dial;
- a LED disposed at the speed indicating needle shaft, the light emitted from the LED travels through the first speed indicating needle, and transmitted out from the first indicating needle;
- a plurality of photoelectric sensors positioned at the periphery of the indicating dial at locations corresponding to the speed marks, and under the dial, said plurality of photoelectric sensors functioning to receive the light emitted from the first speed indicating needle and provide electric signals;
- said speed indicating portion having a second speed indicating needle connected to said speed indicating needle shaft, and being positioned on the speed indicating dial in coaxial, parallel and moving in synchronism with the first speed indicating needle;
- said speed signal conversion portion comprising:
- a multichannel photoelectric converter being connected to said photoelectric sensors at their terminals;
- a coder including an interface and a photoelectric amplifier including an interface, connected to the outputs of said multichannel photoelectric converter, respectively, to form sets of interfaces for providing real-time speed signals.
Dependencies are inferred from the claim text.