CN204495363U - A kind of Simple bicycle Refreshed Digital - Google Patents
A kind of Simple bicycle Refreshed Digital Download PDFInfo
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- CN204495363U CN204495363U CN201420821090.6U CN201420821090U CN204495363U CN 204495363 U CN204495363 U CN 204495363U CN 201420821090 U CN201420821090 U CN 201420821090U CN 204495363 U CN204495363 U CN 204495363U
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Abstract
The utility model discloses a kind of Simple bicycle Refreshed Digital, comprise data acquisition module, control module, display module, alarm module, data external memory module, keyboard circuit module and clock circuit module.The output terminal of described data acquisition module is connected with the input end of described control module, described display module is connected with the output terminal of control module with the input end of alarm module, described keyboard circuit module is connected with the input end of control module with the output terminal of clock circuit module, and described data external memory module to be connected with described control system implementation bidirectional data transfers by signal wire.The utility model with AT89C52 single-chip microcomputer for control treatment core, use Hall element image data, the revolution of wheel is converted to electric pulse and sends into single-chip microcomputer and processes, result is shown by LCD display, can show total kilometrage, instantaneous velocity and current time in real time.When external memory module can prevent power down, mileage is lost, and the alarm module added can realize overspeed alarming function.This design function comprehensively, measure accurate, economical and practical, there is good promotional value.
Description
Technical field
The utility model relates to bicycle odometer device, belongs to bicycle accessories technical field, specifically belongs to a kind of Simple bicycle Refreshed Digital.
Background technology
Along with improving constantly of Living consumption, bicycle is no longer only common transport, walking-replacing tool, but has become the first-selection of people's leisure, amusement, exercise.Therefore, people wish the with better function of bicycle, can bring more convenience, and bicycle odometer, as a large aid of bicycle, requires along with this just and develops rapidly.And traditional bicycle odometer mostly is mechanical type, installing/dismounting comparatively bothers, measuring accuracy is not high and function singleness, can not meet the requirement of people to bicycle odometer.
Summary of the invention
The purpose of this utility model is to provide a kind of Simple bicycle Refreshed Digital.This utility model with AT89C52 single-chip microcomputer for control treatment core, use Hall element image data, the revolution of wheel is converted to electric pulse and sends into single-chip microcomputer and processes, result is shown by LCD display, total kilometrage, instantaneous velocity and current time can be shown in real time, there is the function of power fail preventing data loss and overspeed alarming.This design simplicity of design, powerful, measure accurately, can the deficiency existing for the current bicycle odometer of solution of part.
The utility model adopts following technical scheme to realize goal of the invention:
A kind of Simple bicycle Refreshed Digital, comprise data acquisition module, control module, display module, alarm module, data external memory module, keyboard circuit module and clock circuit module, the output terminal of described data acquisition module is connected with the input end of described control module, described display module is connected with the output terminal of control module with the input end of alarm module, described keyboard circuit module is connected with the input end of control module with the output terminal of clock circuit module, described data external memory module to be connected with described control system by signal wire and to realize bidirectional data transfers.Described data acquisition module adopts A44E Hall switch sensor carry out signals collecting and carry out two divided-frequency by 74L74, described control module adopts AT89C52 Single Chip Microcomputer (SCM) system, described alarm module adopts hummer to ring and reports to the police, when described data external memory module adopts AT24C02 chip to prevent power down, mileage is lost, and described clock circuit module adopts DS1302 real-time timepiece chip.
As the further restriction to the technical program, described display module adopts 1602 LCDs.
As the further restriction to the technical program, described keyboard circuit module adopts 4*4 keyboard.
The beneficial effects of the utility model are: (1) can show total kilometrage number, instantaneous velocity and current time in real time.(2) power fail preventing data loses function (3) overspeed alarming function.(4) adopt liquid crystal display display, reading is more directly perceived.
Accompanying drawing explanation
Fig. 1 is system construction drawing of the present utility model.
Fig. 2 is overall circuit design figure of the present utility model.
Fig. 3 is overall control flow figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the utility model is described in further detail.
See Fig. 1, a kind of Simple bicycle Refreshed Digital, system architecture comprises data acquisition module, control module, display module, alarm module, data external memory module, keyboard circuit module and clock circuit module.
Fig. 2 gives overall circuit design figure of the present utility model.Described data acquisition module adopts A44E Hall switch sensor carry out signals collecting and carry out two divided-frequency by 74L74, described control module adopts AT89C52 Single Chip Microcomputer (SCM) system, described alarm module adopts hummer to ring and reports to the police, when described data external memory module adopts AT24C02 chip to prevent power down, mileage is lost, described clock circuit module adopts DS1302 real-time timepiece chip, described display module adopts 1602 LCDs, and described keyboard circuit module adopts 4*4 keyboard.
Fig. 3 gives overall control flow figure of the present utility model.First needed the initialization to each interface chip, bicycle speed and the initialization of mileage, the design of interrupt vector and opened interruption, circular wait.Also need in main program module to arrange startup/clear flag register, mileage register and rate register, and carry out initialization.Master routine, by the content according to each flag register, completes startup, removes, has the records of distance by the log and count the different operations such as speed respectively.Keyboard arranges size and the regulation time of wheel rim, and external interrupt 0 is for inputting the wheel number of turns, and wheel often circles, and Hall element can produce a low level pulse, calculates and judge distance travelled number according to the content in mileage register.External interrupt 1 control timer T1 duty, closes timer when input low level, and an opening time of timer T1 is the rotation of wheel time of one week, then calculates the speed of bicycle according to wheel circumference.Go out umber of pulse by counter counts, corresponding mileage number can be obtained.The speed of a motor vehicle inputs alarm module through keystroke handling, if when speed exceedes setting value, can be rung report to the police by hummer.
Claims (6)
1. a Simple bicycle Refreshed Digital, it is characterized in that: comprise data acquisition module, control module, display module, alarm module, data external memory module, keyboard circuit module and clock circuit module, the output terminal of described data acquisition module is connected with the input end of described control module, described display module is connected with the output terminal of control module with the input end of alarm module, described keyboard circuit module is connected with the input end of control module with the output terminal of clock circuit module, described data external memory module to be connected with described control system by signal wire and to realize bidirectional data transfers.
2. a kind of Simple bicycle Refreshed Digital according to claim 1, is characterized in that: described data acquisition module adopts A44E Hall switch sensor carry out signals collecting and carry out two divided-frequency by 74L74.
3. a kind of Simple bicycle Refreshed Digital according to claim 1, is characterized in that: described control module adopts AT89C52 Single Chip Microcomputer (SCM) system.
4. a kind of Simple bicycle Refreshed Digital according to claim 1, is characterized in that: described alarm module adopts hummer to ring and reports to the police.
5. a kind of Simple bicycle Refreshed Digital according to claim 1, is characterized in that: when described data external memory module adopts AT24C02 chip to prevent power down, mileage is lost.
6. a kind of Simple bicycle Refreshed Digital according to claim 1, is characterized in that: described clock circuit module adopts DS1302 real-time timepiece chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821090.6U CN204495363U (en) | 2014-12-22 | 2014-12-22 | A kind of Simple bicycle Refreshed Digital |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821090.6U CN204495363U (en) | 2014-12-22 | 2014-12-22 | A kind of Simple bicycle Refreshed Digital |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204495363U true CN204495363U (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420821090.6U Expired - Fee Related CN204495363U (en) | 2014-12-22 | 2014-12-22 | A kind of Simple bicycle Refreshed Digital |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204495363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758419A (en) * | 2016-05-24 | 2016-07-13 | 南宁市茂百科技有限公司 | Digital display automobile odometer |
-
2014
- 2014-12-22 CN CN201420821090.6U patent/CN204495363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758419A (en) * | 2016-05-24 | 2016-07-13 | 南宁市茂百科技有限公司 | Digital display automobile odometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20161222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |