CN202869505U - Bicycle speed meter - Google Patents
Bicycle speed meter Download PDFInfo
- Publication number
- CN202869505U CN202869505U CN 201220561823 CN201220561823U CN202869505U CN 202869505 U CN202869505 U CN 202869505U CN 201220561823 CN201220561823 CN 201220561823 CN 201220561823 U CN201220561823 U CN 201220561823U CN 202869505 U CN202869505 U CN 202869505U
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- Prior art keywords
- pin
- chip microcomputer
- code table
- bicycle
- connects
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- 230000005693 optoelectronics Effects 0.000 claims abstract description 19
- 239000003381 stabilizer Substances 0.000 claims abstract description 13
- 239000013078 crystal Substances 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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Abstract
The utility model relates to a bicycle speed meter; the front fork of a bicycle is fixedly provided with a correlation optoelectronic switch which is electrically connected with a speed meter; and the speed meter is provided with a singlechip, a liquid crystal display (LCD) screen, a tilt angle sensor, a key module and a voltage stabilizer. The bicycle speed meter not only is capable of stably measuring the riding speed, but also is capable of displaying the riding gradient and the riding state, thus being diversified in functions and remarkable in effects, and bringing great convenience to the people.
Description
Technical field
The utility model relates to a kind of code table, especially can show a kind of bicycle code table of the ride gradient and multiple riding condition.
Background technology
At present, most of code table all utilizes electromagnetic principle counting, and inductor captures the signal that induced magnet brings during the rim rotation, by sensor transmissions to code table.But because the magnet that is installed on the car spoke is loosening easily, so counting is unstable when bicycle acutely travels, produces easily misdata and mislead the bicyclist.And existing code table can only calculating mileage and speed, function singleness, and the functions such as gradient demonstration can not realize riding.
The utility model content
Count the problem of unstable and function singleness in order to solve existing bicycle code table, the utility model provides a kind of bicycle code table, this bicycle code table not only can be stable the measurement riding speed, and can show the ride gradient and riding condition, functional diversities, effect is remarkable, brings great convenience to people.
The technical scheme that its technical matters that solves the utility model adopts is: this bicycle code table comprises correlation optoelectronic switch, single-chip microcomputer, LCDs, obliquity sensor, key-press module, voltage stabilizer, be installed with the correlation optoelectronic switch at the bicycle fore fork, the correlation optoelectronic switch is electrically connected with code table, and code table is provided with single-chip microcomputer, LCDs, obliquity sensor, key-press module, reaches voltage stabilizer.
The correlation optoelectronic switch is selected QT30, and it has a transmitting terminal and a receiving end, and wherein transmitting terminal has 2 pins, and red line pin 1 connects the 5V power supply, black line pin 2 ground connection; Receiving end has 3 pins, and red line pin 1 connects the 5V power supply, black line pin 2 ground connection, and white line pin 3 connects the pin 1 of single-chip microcomputer, and this correlation optoelectronic switch is for generation of speed pulse signal, and this signal sends single-chip microcomputer to and carries out subsequent treatment; The model of single-chip microcomputer is ATMEGA16, and this single-chip microcomputer has 40 pins, and wherein pin 12,13 connects the 8MHz crystal oscillator, and crystal oscillator is by ceramic disc capacitor C1 and the C2 ground connection of two 22PF, and this single-chip microcomputer is used for signal to be processed; The model of LCDs is NOKIA5110, this LCDs has 8 pins, wherein pin 1 and pin 8 connect the 5V power supply, pin 2 ground connection, pin 3,4,5,6,7 connects respectively the pin 22,23,24,25,26 of single-chip microcomputer, and this LCDs can clearly show the present speed of bicycle, the mileage of riding, the time of riding, the gradient of riding; The model of obliquity sensor is Longqiu MMA7361, and this obliquity sensor has 12 pins, and wherein pin 2 connects the 5V power supply, pin 3 ground connection, pin 6 connects the pin 39 of single-chip microcomputer, and this obliquity sensor can record the gradient of bicycle when upward slope is ridden, and then data is passed to single-chip microcomputer process; Key-press module adopts 3 normal pulsed buttons, and this button has 2 pins, and the pin 1 of 3 buttons connects respectively the pin 2 difference ground connection of the pin 16 of single-chip microcomputer, 17,18,3 buttons, and this key-press module is used for making zero of bicycle code table and function is selected; The model of voltage stabilizer is 7805, and this voltage stabilizer can be reduced to 5V with existing 9V power supply on the market, is respectively power devices.
People are by bike the time, during current vehicle wheel rotation, spoke stops the correlation path of correlation optoelectronic switch 1, produce and the proportional pulsed frequency of car speed, single-chip microcomputer 2 these pulsed frequencies of record, and then calculate by bike speed, and shown by LCDs 3, the while monolithic, 2 read the data of obliquity sensor 4, drive LCDs 3 and show the gradient of riding.
The beneficial effects of the utility model are, the measurement riding speed that this bicycle code table not only can be stable, and can show the ride gradient and riding condition, and functional diversities, effect is remarkable, brings great convenience to people.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is structural principle synoptic diagram of the present utility model.
Fig. 2 is circuit connection diagram of the present utility model.
Among the figure, 1. correlation optoelectronic switch, 2. single-chip microcomputer, 3. LCDs, 4. obliquity sensor, 5. key-press module, 6. voltage stabilizer.
Embodiment
In the drawings, this bicycle code table comprises correlation optoelectronic switch 1, single-chip microcomputer 2, LCDs 3, obliquity sensor 4, key-press module 5, voltage stabilizer 6, be installed with correlation optoelectronic switch 1 at the bicycle fore fork, correlation optoelectronic switch 1 is electrically connected with code table, and code table is provided with single-chip microcomputer 2, LCDs 3, obliquity sensor 4, key-press module 5, reaches voltage stabilizer 6.
Correlation optoelectronic switch 1 is selected QT30, and it has a transmitting terminal and a receiving end, and wherein transmitting terminal has 2 pins, and red line pin 1 connects the 5V power supply, black line pin 2 ground connection; Receiving end has 3 pins, and red line pin 1 connects the 5V power supply, black line pin 2 ground connection, and white line pin 3 connects the pin 1 of single-chip microcomputer 2, and this correlation optoelectronic switch 1 is for generation of speed pulse signal, and this signal sends single-chip microcomputer 2 to and carries out subsequent treatment; The model of single-chip microcomputer 2 is ATMEGA16, and this single-chip microcomputer 2 has 40 pins, and wherein pin 12,13 connects the 8MHz crystal oscillator, and crystal oscillator is by ceramic disc capacitor C1 and the C2 ground connection of two 22PF, and this single-chip microcomputer 2 is used for signal to be processed; The model of LCDs 3 is NOKIA5110, this LCDs 3 has 8 pins, wherein pin 1 and pin 8 connect the 5V power supply, pin 2 ground connection, pin 3,4,5,6,7 connects respectively the pin 22,23,24,25,26 of single-chip microcomputer 2, and this LCDs 3 can clearly show the present speed of bicycle, the mileage of riding, the time of riding, the gradient of riding; The model of obliquity sensor 4 is Longqiu MMA7361, this obliquity sensor 4 has 12 pins, wherein pin 2 connects the 5V power supply, pin 3 ground connection, pin 6 connects the pin 39 of single-chip microcomputer 2, this obliquity sensor 4 can record the gradient of bicycle when upward slope is ridden, and then data is passed to single-chip microcomputer 2 process; Key-press module 5 adopts 3 normal pulsed buttons, and this button has 2 pins, and the pin 1 of 3 buttons connects respectively the pin 2 difference ground connection of the pin 16 of single- chip microcomputer 2,17,18,3 buttons, and this key-press module 5 is used for making zero of bicycle code table and function is selected; The model of voltage stabilizer 6 is 7805, and this voltage stabilizer 6 can be reduced to 5V with existing 9V power supply on the market, is respectively power devices.
People are by bike the time, during current vehicle wheel rotation, spoke stops the correlation path of correlation optoelectronic switch 1, produce and the proportional pulsed frequency of car speed, single-chip microcomputer 2 these pulsed frequencies of record, and then calculate by bike speed, and shown by LCDs 3, the while monolithic, 2 read the data of obliquity sensor 4, drive LCDs 3 and show the gradient of riding.
Claims (6)
1. bicycle code table, comprise correlation optoelectronic switch (1), single-chip microcomputer (2), LCDs (3), obliquity sensor (4), key-press module (5), voltage stabilizer (6), it is characterized in that, be installed with correlation optoelectronic switch (1) at the bicycle fore fork, correlation optoelectronic switch (1) is electrically connected with code table, code table is provided with single-chip microcomputer (2), LCDs (3), obliquity sensor (4), key-press module (5), and voltage stabilizer (6), correlation optoelectronic switch (1) has a transmitting terminal and a receiving end, wherein transmitting terminal has 2 pins, red line pin 1 connects the 5V power supply, black line pin 2 ground connection, receiving end has 3 pins, red line pin 1 connects the 5V power supply, black line pin 2 ground connection, white line pin 3 connects the pin 1 of single-chip microcomputer (2), single-chip microcomputer (2) has 40 pins, wherein pin 12,13 connect the 8MHz crystal oscillator, crystal oscillator is by ceramic disc capacitor C1 and the C2 ground connection of two 22PF, LCDs (3) has 8 pins, wherein pin 1 and pin 8 connect the 5V power supply, pin 2 ground connection, pin 3,4,5,6,7 connect respectively the pin 22 of single-chip microcomputer (2), 23,24,25,26, obliquity sensor (4) has 12 pins, wherein pin 2 connects the 5V power supply, pin 3 ground connection, pin 6 connects the pin 39 of single-chip microcomputer (2), and key-press module (5) adopts 3 normal pulsed buttons, and this button has 2 pins, the pin 1 of 3 buttons connects respectively the pin 16 of single-chip microcomputer (2), 17, the pin 2 of 18,3 buttons is ground connection respectively.
2. bicycle code table according to claim 1 is characterized in that, described correlation optoelectronic switch (1) is selected QT30.
3. bicycle code table according to claim 1 is characterized in that, the model of described single-chip microcomputer (2) is ATMEGA16.
4. bicycle code table according to claim 1 is characterized in that, is NOKIA5110 in the model of described LCDs (3).
5. bicycle code table according to claim 1 is characterized in that, the model of described obliquity sensor (4) is Longqiu MMA7361.
6. bicycle code table according to claim 1 is characterized in that, the model of described voltage stabilizer (6) is 7805.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561823 CN202869505U (en) | 2012-10-30 | 2012-10-30 | Bicycle speed meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561823 CN202869505U (en) | 2012-10-30 | 2012-10-30 | Bicycle speed meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202869505U true CN202869505U (en) | 2013-04-10 |
Family
ID=48036219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220561823 Expired - Fee Related CN202869505U (en) | 2012-10-30 | 2012-10-30 | Bicycle speed meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202869505U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454941A (en) * | 2016-09-30 | 2017-12-08 | 深圳博芯科技股份有限公司 | Ride the acquisition methods of instantaneous velocity |
| CN109754603A (en) * | 2019-01-21 | 2019-05-14 | 石家庄铁道大学 | Travel time computation method, device and terminal device |
-
2012
- 2012-10-30 CN CN 201220561823 patent/CN202869505U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107454941A (en) * | 2016-09-30 | 2017-12-08 | 深圳博芯科技股份有限公司 | Ride the acquisition methods of instantaneous velocity |
| CN107454941B (en) * | 2016-09-30 | 2020-07-10 | 深圳博芯科技股份有限公司 | Method for acquiring riding instant speed |
| CN109754603A (en) * | 2019-01-21 | 2019-05-14 | 石家庄铁道大学 | Travel time computation method, device and terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20131030 |