CN101876553A - Electronic digital display instrument and speedometer display method for motor cycle - Google Patents

Electronic digital display instrument and speedometer display method for motor cycle Download PDF

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Publication number
CN101876553A
CN101876553A CN2009100501714A CN200910050171A CN101876553A CN 101876553 A CN101876553 A CN 101876553A CN 2009100501714 A CN2009100501714 A CN 2009100501714A CN 200910050171 A CN200910050171 A CN 200910050171A CN 101876553 A CN101876553 A CN 101876553A
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China
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signal
motor vehicle
chip microcomputer
speed
pic single
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Pending
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CN2009100501714A
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Chinese (zh)
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杨昆
张笑非
陈夏苗
包赟
李荣正
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Shanghai University of Engineering Science
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Shanghai University of Engineering Science
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Priority to CN2009100501714A priority Critical patent/CN101876553A/en
Publication of CN101876553A publication Critical patent/CN101876553A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an electronic digital display instrument and a speedometer display method for a motorcycle. The electronic digital display instrument for the motorcycle comprises a vehicle speed sensor, a signal acquisition module, a speedometer display and a positive-impedance converter (PIC) singlechip which are connected in turn and also comprises a timer of which one end is connected with the PIC singlechip and the other end is connected with the signal acquisition module, wherein the vehicle speed sensor and the signal acquisition module are also connected with the PIC singlechip. The speedometer display method for the motorcycle comprises a sampling step, a conversion step, an acquisition step, a calculation step and a display step. The electronic digital display instrument and the speedometer display method for the motorcycle have the advantages of high detection accuracy, high response speed, high anti-vibration, low fault rate, compact structure, low power consumption and the like.

Description

A kind of motorcycle electric digital displaying meter and vehicle speed mileage display packing
Technical field
The present invention relates to a kind of automobile instrument and vehicle speed mileage display packing, relate in particular to a kind of motorcycle electric digital displaying meter and vehicle speed mileage display packing.
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 objective of the invention is to overcome the defective of prior art, and a kind of motorcycle electric digital displaying meter and vehicle speed mileage display packing are provided, have and advantage such as 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 one of 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.
Two the technical scheme that realizes above-mentioned purpose is: a kind of motorcycle speed of a motor vehicle and mileage vehicle speed mileage display packing is characterized in that this method may further comprise the steps:
Sampling step, the rotating signal of collection motor vehicle wheel;
Switch process will collect to such an extent that the rotating signal of motor vehicle wheel is converted to pulse signal;
Catch step, catch the rising edge or the negative edge that detect the pulse signal in the described switch process, the timing of sampling accumulative total pulse signal number correspondence;
Calculation procedure, the pulse signal number and the pairing Time Calculation that obtain according to described seizure step go out the speed of a motor vehicle and mileage;
Step display shows the speed of a motor vehicle and the mileage that calculate in the described calculation procedure;
Described sampling step and switch process adopt a vehicle speed sensor, and this vehicle speed sensor utilizes infrared mode that the rotating signal of motor vehicle wheel is converted to pulse signal;
Described seizure step adopts the signal capture module of PIC single-chip microcomputer and the timer of PIC single-chip microcomputer, and this timer length is 16, and definable goes out 0~65535 microsecond;
Described step display adopts static multidigit eight hop count sign indicating number displays.
The invention has the beneficial effects as follows: a kind of motorcycle electric digital displaying meter of the present invention and vehicle speed mileage display packing have advantage such as 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 one of the present invention's motorcycle electric digital displaying meter;
Fig. 2 is the present invention's two the motorcycle speed of a motor vehicle and a mileage display packing process flow diagram.
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 one of the present invention's motorcycle electric digital displaying meter, 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 DS 1302 real-time timepiece chips.
See also Fig. 2, there is shown the present invention's two the motorcycle speed of a motor vehicle and mileage display packing, this method may further comprise the steps:
Sampling step S1, the rotating signal of collection motor vehicle wheel;
Switch process S2 will collect to such an extent that the rotating signal of motor vehicle wheel is converted to pulse signal;
Catch step S3, catch the rising edge or the negative edge that detect the pulse signal in the described switch process, the timing of sampling accumulative total pulse signal number correspondence;
Calculation procedure S4, the pulse signal number and the pairing Time Calculation that obtain according to described seizure step go out the speed of a motor vehicle and mileage;
Step display S5 shows the speed of a motor vehicle and the mileage that calculate in the described calculation procedure.
Wherein, sampling step S1 and switch process S2 adopt a vehicle speed sensor, and this vehicle speed sensor utilizes infrared mode that the rotating signal of motor vehicle wheel is converted to pulse signal.
Catch step S3 and adopt the signal capture CCP module of PIC single-chip microcomputer and the timer of PIC single-chip microcomputer, this timer length is 16, and definable goes out 0~65535 microsecond.
Step display S5 adopts static multidigit eight hop count sign indicating number displays, and displacement realizes that data synchronization drives through 74LS164 by the SPI serial communication.
Above embodiment is only for the usefulness that the present invention is described, but not limiting the scope of the invention.Relevant those skilled in the art under the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, and the technical scheme that all are equal to also should belong within the category of the present invention's protection, is limited by each claim.

Claims (8)

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 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, writing 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.
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.
5. the motorcycle speed of a motor vehicle and mileage display packing is characterized in that this method may further comprise the steps: sampling step, gather the rotating signal of motor vehicle wheel;
Switch process will collect to such an extent that the rotating signal of motor vehicle wheel is converted to pulse signal;
Catch step, catch the rising edge or the negative edge that detect the pulse signal in the described switch process, the timing of sampling accumulative total pulse signal number correspondence;
Calculation procedure, the pulse signal number and the pairing Time Calculation that obtain according to described seizure step go out the speed of a motor vehicle and mileage;
Step display shows the speed of a motor vehicle and the mileage that calculate in the described calculation procedure.
6. the motorcycle speed of a motor vehicle according to claim 4 and mileage display packing is characterized in that described sampling step and switch process adopt a vehicle speed sensor, and this vehicle speed sensor utilizes infrared mode that the rotating signal of motor vehicle wheel is converted to pulse signal.
7. the motorcycle speed of a motor vehicle according to claim 4 and mileage display packing is characterized in that, described seizure step adopts the signal capture module and the PIC single-chip microcomputer of PIC single-chip microcomputer to carry timer, and this timer length is 16, and definable goes out 0~65535 microsecond.
8. the motorcycle speed of a motor vehicle according to claim 4 and mileage display packing is characterized in that, described step display adopts static multidigit eight hop count sign indicating number displays.
CN2009100501714A 2009-04-28 2009-04-28 Electronic digital display instrument and speedometer display method for motor cycle Pending CN101876553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100501714A CN101876553A (en) 2009-04-28 2009-04-28 Electronic digital display instrument and speedometer display method for motor cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100501714A CN101876553A (en) 2009-04-28 2009-04-28 Electronic digital display instrument and speedometer display method for motor cycle

Publications (1)

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CN101876553A true CN101876553A (en) 2010-11-03

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107883978A (en) * 2017-12-22 2018-04-06 中车青岛四方机车车辆股份有限公司 A kind of vehicle mileage and speed acquisition device and computational methods
CN115035703A (en) * 2022-06-08 2022-09-09 北京悟空出行科技有限公司 Vehicle early warning method and device, storage medium and electronic equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107883978A (en) * 2017-12-22 2018-04-06 中车青岛四方机车车辆股份有限公司 A kind of vehicle mileage and speed acquisition device and computational methods
CN115035703A (en) * 2022-06-08 2022-09-09 北京悟空出行科技有限公司 Vehicle early warning method and device, storage medium and electronic equipment

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Application publication date: 20101103