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Bicycle speed measurement apparatus

A speed measuring device and bicycle technology, which is applied to measuring devices, mapping and navigation, instruments, etc., can solve the problems of single function, unreliable quality, and few choices for consumers, and achieve the effect of improving safety.

Inactive Publication Date: 2015-11-18
HUBEI UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the stopwatches on the market are expensive and have a single function, and some are cheap but unreliable in quality, and consumers have too few choices

Method used

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Embodiment Construction

[0013] Specific embodiments of the present invention will be described in detail below in conjunction with specific drawings. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be regarded as isolated, and they can be combined with each other to achieve better technical effects.

[0014] Such as figure 1 As shown, the present invention provides a bicycle speed measuring device, comprising: a microprocessor module 2, a liquid crystal display module 3, a sensor module 1 and a key input module 4; the sensor module 1 includes a Hall sensor 6, a voltage comparator 5 and a reference voltage Circuit 7; the microprocessor module 2 is connected to the liquid crystal display module 3, the button input module 4 and the voltage comparator 5; the voltage comparator 5 is connected to the Hall sensor 6 and the reference voltage circuit 7; the output terminal of the Hall sensor 6 is connected to the voltage co...

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Abstract

The present invention discloses a bicycle speed measurement apparatus, which comprises a microprocessor module, a liquid crystal display module, a sensor module and a key input module, wherein the sensor module comprises a Hall sensor, a voltage comparator and a reference voltage circuit, the microprocessor module is connected with the liquid crystal display module, the key input module and the voltage comparator, the voltage comparator is connected with the Hall sensor and the reference voltage circuit, the output terminal of the Hall sensor is connected with the positive input terminal of the voltage comparator, the output terminal of the voltage comparator is connected with the external counter interface of the microprocessor, and the liquid crystal display module and the key input module are connected with the digital I / O port of the microprocessor module. With the bicycle speed measurement apparatus of the present invention, the user can check the time, the bicycle speed, the mileage and other riding data during the riding so as to remind the user to maintain the speed and improve the safety, and the set data can be modified according to the requirement so as to achieve the accurate speed measurement purpose. The bicycle speed measurement apparatus of the present invention can further be used in vehicles, motorcycles, motors and other places requiring rotation speed measurement.

Description

technical field [0001] The invention belongs to the field of electronic measurement, and in particular relates to a bicycle speed measuring device. Background technique [0002] Due to its natural, healthy, simple and environmentally friendly features, cycling is becoming more and more popular among the public, and has gradually become a popular trend of modern fitness. The cyclist can know how much energy is consumed and how much mileage has been ridden through the bicycle computer, and it also has the function of safety reminder. [0003] At present, speed measurement is generally divided into mechanical counting method and electronic counting method. Among them, the electronic counting method uses photoelectric tubes or photoelectric encoders to collect pulse signals. For bicycles, Hall elements are generally used to count the number of pulses through the control chip. Most of the stopwatches on the market are expensive and have a single function, and some are cheap but ...

Claims

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Application Information

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IPC IPC(8): G01C23/00
CPCG01C23/00
Inventor 周岳斌杨凯陈家顺朱冬冬向立明
Owner HUBEI UNIV OF ARTS & SCI
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