CN205246089U

CN205246089U - Bicycle odometer

Info

Publication number: CN205246089U
Application number: CN201521074088.8U
Authority: CN
Inventors: 杨晓昕; 王颖
Original assignee: Nanjing Polytechnic Institute
Current assignee: Nanjing Polytechnic Institute
Priority date: 2015-12-22
Filing date: 2015-12-22
Publication date: 2016-05-18
Anticipated expiration: 2025-12-22

Abstract

The utility model discloses a bicycle odometer, including the bicycle body, hall sensor module, single -chip module and display module, hall sensor module, magnet steel and hall sensor, the magnet steel sets up on the front wheel wheel of bicycle, and hall sensor sets up and takes turns the deep bead outside in the front, and when the rotatory round of front wheel, hall sensor then exports a pulse signal for measure the number of rotations of bicycle front wheel, single -chip module for receive the pulse signal of hall sensor module conveying, and change out bicycle walking mileage, the display module for receive the mileage signal of monolithic module conveying, show it. The utility model discloses the circuit is simple, the stable performance, can effectively measure the mileage number of bicycle.

Description

A kind of bicycle odometer

Technical field

The utility model relates to a kind of bicycle odometer.

Background technology

At present, nationwide fitness programs are just flourish, and bicycle is extensively pushed away as a body buildingExtensively, and, how much momentally can from the walking of bicycle and bicycle mileage, draw. BicycleTravel time people can learn by wrist-watch, and the mileage of bicycle cannot be learnt. Thereby be badly in need of voluntarilyThe instrument that mileage is installed on car, facilitates national physical training.

Summary of the invention

The utility model, for existing deficiency, provides a kind of bicycle odometer, and bicycle walking can be providedMileage. For achieving the above object, the utility model adopts technical scheme to be:

A kind of bicycle odometer, comprises bicycle body, Hall sensor module, one-chip computer module and aobviousShow module, Hall sensor module, comprises, magnet steel and Hall element, and described magnet steel is arranged on bicycleFront-wheel wheel is upper, and Hall element is arranged on front-wheel deep bead outside, when front-wheel rotation one circle, hall sensingDevice is exported a pulse signal, for measuring the rotating cycle of front wheel; One-chip computer module, forReceive the pulse signal that Hall sensor module transmits, and change out bicycle walking mileage; Display module,For receiving the mileage signal of single-piece molded block movement, display it.

Described Hall sensor module comprises Hall chip A3144E, and No. 1 pin of A3144E meets 5V, No. 2 pinGround connection, No. 3 pin meets 5V through 10K resistance, and No. 3 pin connect the P1.0 mouth of one-chip computer module.

Described one-chip computer module comprises STC89C52 single-chip microcomputer, and 11.0592 crystal oscillator is connected in parallel on STC89C52'sNo. 18 pin and No. 19 pin, No. 18 pin and No. 19 pin are respectively through 30pF capacity earth, No. 9 pin and+5V betweenParalleling switch and 0.1uF electric capacity, No. 9 pin are through 10K resistance eutral grounding.

Described display module comprises LCD12864, No. 1 pin and No. 20 pin ground connection of LCD12864, No. 2 pin andNo. 19 connect+5V of pin, No. 18 pin are through connect+5V of 10K slide rheostat, and the centre tap of slide rheostat connects No. 3Pin, No. 4 pin, No. 5 pin, No. 6 pin meet P2.5, P2.6, the P2.7 mouth of one-chip computer module, LCD12864 successively7-14 pin connect successively the P0.0-P0.7 mouth of one-chip computer module, No. 15 pin of LCD12864 connect single-chip microcomputerThe P2.4 mouth of module, No. 16 pin is unsettled, and No. 17 pin connect the P2.2 pin of one-chip computer module.

The beneficial effects of the utility model: the utility model circuit is simple, stable performance, can effectively measureThe mileage number of bicycle.

Brief description of the drawings

Fig. 1 is system block diagram of the present utility model;

Fig. 2 is Hall sensor module circuit diagram of the present utility model;

Fig. 3 is one-chip computer module circuit diagram of the present utility model;

Fig. 4 is display module circuit diagram of the present utility model.

Detailed description of the invention

The utility model is specifically introduced as follows below in conjunction with drawings and Examples:

Below announced the utility model with preferred embodiment, so it is not in order to limit the utility model,All technical schemes of taking the form that is equal to replacement or equivalent transformation to obtain, all drop on guarantor of the present utility modelWithin protecting scope.

Claims

1. a bicycle odometer, comprises bicycle body, characterized by further comprising Hall sensor module,One-chip computer module and display module,

Hall sensor module, comprises, magnet steel and Hall element, and described magnet steel is arranged on the front-wheel wheel of bicycleUpper, Hall element is arranged on front-wheel deep bead outside, and when front-wheel rotation one circle, Hall element is exportedA pulse signal, for measuring the rotating cycle of front wheel;

One-chip computer module, the pulse signal transmitting for receiving Hall sensor module, and change out cycleryWalk mileage;

Display module, for receiving the mileage signal of single-piece molded block movement, displays it.

2. a kind of bicycle odometer according to claim 1, is characterized in that, described Hall element mouldPiece comprises Hall chip A3144E, and No. 1 pin of A3144E meets 5V, No. 2 pin ground connection, and No. 3 pin are through 10K electricityResistance meets 5V, and No. 3 pin connect the P1.0 mouth of one-chip computer module.

3. a kind of bicycle odometer according to claim 1, is characterized in that, described one-chip computer module bagDraw together STC89C52 single-chip microcomputer, 11.0592 crystal oscillator is connected in parallel on No. 18 pin and No. 19 pin of STC89C52,18Number pin and No. 19 pin are respectively through 30pF capacity earth, No. 9 pin and+5V between paralleling switch and 0.1uF electric capacity,No. 9 pin are through 10K resistance eutral grounding.

4. a kind of bicycle odometer according to claim 1, is characterized in that described display module comprisesLCD12864, No. 1 pin and No. 20 pin ground connection of LCD12864, No. 2 pin and No. 19 connect+5V of pin, No. 18 pinThrough connect+5V of 10K slide rheostat, the centre tap of slide rheostat connects pin No. 3, No. 4 pin, No. 5 pin, 6Number pin connects P2.5, P2.6, the P2.7 mouth of one-chip computer module successively, and the 7-14 pin of LCD12864 connects successivelyThe P0.0-P0.7 mouth of one-chip computer module, No. 15 pin of LCD12864 connect the P2.4 mouth of one-chip computer module, 16Number pin is unsettled, and No. 17 pin connect the P2.2 pin of one-chip computer module.