CN201397146Y

CN201397146Y - Electronic digital display meter of motorcycle

Info

Publication number: CN201397146Y
Application number: CN2009200712640U
Authority: CN
Inventors: 杨昆; 包赟; 张笑非; 陈夏苗; 李荣正
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 2009-04-28
Filing date: 2009-04-28
Publication date: 2010-02-03
Anticipated expiration: 2019-04-28

Abstract

The utility model discloses an electronic digital display meter of a motorcycle. The electronic digital display meter comprises a motorcycle speed sensor, a signal catching module, a motorcycle speedand mileage display device, and a PIC MCU (micro controller unit) which are sequentially connected. The electronic digital display meter further comprises a timer, one end of the timer is connected with the PIC MCU, and the other end of the timer is connected with the signal catching module. The motorcycle speed sensor and the single catching module are also connected with the PIC MCU. The electronic digital display meter of the motorcycle has the advantages of high detecting accuracy, quick response, strong shock resisting performance, low fault rate, compact structure, less electric consumption and the like.

Description

A kind of motorcycle electric digital displaying meter

Technical field

The utility model relates to a kind of automobile instrument, relates in particular to a kind of motorcycle electric digital displaying meter.

Technical background

Motorcycle is a kind of vehicles of popularizing in the modern life, and it can't be replaced by other vehicles with its quick flexible characteristic.

Traditional pointer speed mileometer drives with flexible axle, has following shortcoming: the one, and flexible axle ruptures easily owing to be subjected to the restriction of the steel wire alterante stress limit when high speed rotating; The 2nd, flexible axle arranges that phenomenons such as the excessive or motion sluggishness of deformation appear in long meeting; The 3rd, for different vehicles, the installation site of speed odometer also can be subjected to the restriction of flexible axle length and flexibility.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, and a kind of motorcycle electric digital displaying meter is provided, and has advantage such as to detect accurately, response speed is fast, shock resistance is strong, failure rate is low, compact conformation, power consumption are little.

The technical scheme that realizes above-mentioned purpose is: a kind of motorcycle electric digital displaying meter, it is characterized in that, comprise vehicle speed sensor, signal capture module, the speed of a motor vehicle and the mileage display, the PIC single-chip microcomputer that link to each other successively, also comprise the timer that links to each other an end other end links to each other with the signal capture module with described PIC single-chip microcomputer, described vehicle speed sensor, signal capture module also link to each other with described PIC single-chip microcomputer, wherein:

Described PIC single-chip microcomputer sends control signal respectively and gives described vehicle speed sensor, signal capture module, timer, the speed of a motor vehicle and mileage display;

Described vehicle speed sensor receives the control signal of described PIC single-chip microcomputer, gathers the rotating signal of motor vehicle wheel, and is converted into pulse signal and exports to the signal capture module;

Described timer receives the control signal of described PIC single-chip microcomputer, the recording timing time, and the result exported to described signal capture module;

Described signal capture module receives the control signal of described PIC single-chip microcomputer, catches the pulse signal of described vehicle speed sensor output, receives the time signal of described timer output, and the result is exported to the described speed of a motor vehicle and mileage display;

The described speed of a motor vehicle and mileage display receive the control signal of described PIC single-chip microcomputer, will show from the signal output of described signal capture module;

Described PIC single-chip microcomputer also links to each other with fuel level sensor, voltage sensor, date time module;

Described timer adopts the PIC single-chip microcomputer to carry timer, and this timer length is 16, and definable goes out 0～65535 microsecond;

The described speed of a motor vehicle and mileage display adopt static multidigit eight hop count sign indicating number displays.

The beneficial effects of the utility model are: advantages such as the utlity model has and detect the accuracy rate height, response speed is fast, shock resistance is strong, failure rate is low, compact conformation, power consumption are little.

Description of drawings

Fig. 1 is the structural representation of the utility model motorcycle electric digital displaying meter;

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

See also Fig. 1, there is shown the structure of motorcycle electric digital displaying meter of the present utility model, comprise vehicle speed sensor 1, signal capture module 2, the speed of a motor vehicle and mileage display 3, PIC single-chip microcomputer 4, timer 5, fuel level sensor 6, voltage sensor 7, date time module 8.

Vehicle speed sensor 1, signal capture module 2, the speed of a motor vehicle and mileage display 3, PIC single-chip microcomputer 4 link to each other successively, one end of timer 5 other end that links to each other with PIC single-chip microcomputer 4 links to each other with signal capture module 2, and vehicle speed sensor 1, signal capture module 2 also link to each other with described PIC single-chip microcomputer 4.

During the work of motorcycle electric digital displaying meter, PIC single-chip microcomputer 4 sends control signal respectively and gives vehicle speed sensor 1, signal capture module 2, timer 5, the speed of a motor vehicle and mileage display 3; After vehicle speed sensor 1 receives the control signal of PIC single-chip microcomputer 4, gather the rotating signal of motor vehicle wheel, and utilize infrared mode to be converted into pulse signal and export to signal capture module 2; Timer 5 adopts the timer that is had in the PIC single-chip microcomputers 4, and length is 16, can define 0～65535 microsecond, after it receives the control signal of PIC single-chip microcomputer 4, and the recording timing time, and the result exported to described signal capture module 2; Signal capture module 2 adopts the signal capture CCP module of PIC16F877 single-chip microcomputer, after it receives the control signal of PIC single-chip microcomputer 4, catch the rising edge or the negative edge of the pulse signal of vehicle speed sensor 1 output in real time, receive timer 5 outputs with the corresponding timing signal of accumulative total pulse signal number, can calculate the speed of a motor vehicle and mileage by accumulative total pulse signal number and timing signal corresponding with it, signal capture module 2 is exported to the speed of a motor vehicle and mileage display 3 with the result.The speed of a motor vehicle and mileage display 3 adopt static multidigit eight hop count sign indicating number displays, and displacement realizes that data synchronization drives through 74LS164 by the SPI serial communication, after it receives the control signal of PIC single-chip microcomputer 4, will show from the signal output of signal capture module 2.

PIC single-chip microcomputer 4 also links to each other with fuel level sensor 6, voltage sensor 7, date time module 8, can show oil level, voltage, Time of Day information.Wherein, date time module 8 adopts the DS1302 real-time timepiece chip.

Above embodiment is only for the usefulness of explanation the utility model, but not to the restriction of the utility model protection domain.Relevant those skilled in the art; under the situation that does not break away from spirit and scope of the present utility model; can also make various conversion or modification, and the technical scheme that all are equal to should belong to also within the category of the utility model protection, is limited by each claim.

Claims

1. motorcycle electric digital displaying meter, it is characterized in that, comprise vehicle speed sensor, signal capture module, the speed of a motor vehicle and the mileage display, the PIC single-chip microcomputer that link to each other successively, also comprise the timer that links to each other an end other end links to each other with the signal capture module with described PIC single-chip microcomputer, described vehicle speed sensor, signal capture module also link to each other with described PIC single-chip microcomputer, wherein:

Described timer receives the control signal of described PIC single-chip microcomputer, writing time, and the result exported to described signal capture module;

The described speed of a motor vehicle and mileage display receive the control signal of described PIC single-chip microcomputer, will show from the signal output of described signal capture module.

2. motorcycle electric digital displaying meter according to claim 1 is characterized in that, described PIC single-chip microcomputer also links to each other with fuel level sensor, voltage sensor, date time module.

3. motorcycle electric digital displaying meter according to claim 1 is characterized in that, described timer adopts the PIC single-chip microcomputer to carry timer, and this timer length is 16, and definable goes out 0～65535 microsecond.

4. motorcycle electric digital displaying meter according to claim 1 is characterized in that, the described speed of a motor vehicle and mileage display adopt static multidigit eight hop count sign indicating number displays.