CN203460990U - Mountain bike intelligent braking tail light control system - Google Patents
Mountain bike intelligent braking tail light control system Download PDFInfo
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- CN203460990U CN203460990U CN201320601535.5U CN201320601535U CN203460990U CN 203460990 U CN203460990 U CN 203460990U CN 201320601535 U CN201320601535 U CN 201320601535U CN 203460990 U CN203460990 U CN 203460990U
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- mountain bike
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- gyro sensor
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Abstract
A mountain bike intelligent braking tail light control system comprises a single chip microcomputer which is connected with an acceleration sensor circuit, a gyroscope sensor circuit, a voltage-stabilized source circuit and a sound-light alarming circuit respectively. The acceleration sensor circuit comprises an acceleration sensor which is used for detecting the acceleration of a mountain bike. The gyroscope sensor circuit comprises a gyroscope sensor which is used for detecting the triaxial drift angle of a mounting part where a gyroscope is placed. The voltage-stabilized source circuit comprises a voltage-stabilized chip which is connected with a battery through an electronic element. The system is totally controlled in an instant mode by the single chip microcomputer, and the shortcoming of manual time control is overcome. According to the system, the structure of the mountain bike does not need to be changed, an intelligent braking tail light is arranged like a common tail light, great convenience is achieved, a buzzer is added in the system, and buzzing can be achieved during a braking process, so that a hint function is added.
Description
Technical field
A kind of mountain bike intelligent braking of the utility model taillight control system, controls automatically for mountain bike.
Background technology
At present, along with people more and more pay attention to environmental protection, mountain bike car enters in daily life again.In avenue is ridden, need to consider traffic regulation and to rear ride teammate, your intention of riding of power actuated vehicle.1), the taillight of function singleness on market, there are now two types of taillights:: can only be by flicker or normal bright existence of accusing prompting front vehicle self.In shuttling back and forth in avenue, mountain bike runs into the middle brake deceleration of riding of traffic or descending, front vehicle due to distance and navigating mate eyesight speed of response limited, can not perceive in time mountain bike brakes suddenly, to be easy to send out traffic accident in this case, especially at night, this problem is particularly outstanding.2), can be by the taillight of manual regulation: although the taillight of manual regulation can regulate the state of a control of taillight very easily, but brake process is a transients, while particularly having emergency case forwardly, need sudden stop, people's instinct is to pinch brake, and do not have the enough reaction time, do not go to regulate taillight to go to point out front vehicle, so to brake aspect or some deficiency.
Summary of the invention
The utility model provides a kind of mountain bike intelligent braking taillight control system, by adopting high accuracy gyroscope instrument and acceleration pick-up to answer mountain bike to brake moment from innervation, and by controlling taillight, brightens suddenly the braking effect of intelligent imitation automobile tail light.This system, without changing mountain bike self structure, only need to be installed as common taillight.
The technical scheme that the utility model is taked is: mountain bike intelligent braking taillight control system, comprise micro controller system, and micro controller system connects respectively acceleration sensor circuit, gyro sensor circuit, voltage-stabilized power supply circuit and sound light alarming circuit.Described acceleration sensor circuit comprises described in acceleration pick-up that acceleration pick-up is for detection of the acceleration/accel of mountain bike; Described gyro sensor circuit comprises gyro sensor, and described gyro sensor is for detection of three axle drift angles of mountain bike; Described voltage-stabilized power supply circuit comprises voltage stabilizing chip, and described voltage stabilizing chip connects battery by electronic component, described voltage-stabilized power supply circuit for by the 3V boost in voltage of battery to 5V and keep 5V burning voltage; Described sound light alarming circuit comprises: LED taillight, buzzer phone.
Described acceleration pick-up adopts ADXL202 type, and described gyro sensor adopts L3G4200D type, and described voltage stabilizing chip adopts MAX1797 type.
A kind of mountain bike intelligent braking of the utility model taillight control system, responds to mountain bike brake moment automatically, in this process completely by micro controller system Instantaneous Control, the time drawback of the manual control of having forgone.And native system also do not need to change mountain bike self structure, only need to as common taillight, install, very convenient; In native system, also increased buzzer phone newly, brake process pipes to increase prompt facility again.By detecting brake process situation, change taillight brightness, can be reduced in to a great extent the personnel's that ride night safety traffic hidden danger.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is that the utility model system connects block diagram;
Fig. 2 is the utility model sound light alarming circuit structural representation;
Fig. 3 is the utility model gyro sensor electrical block diagram;
Fig. 4 is the utility model acceleration sensor circuit structural representation;
Fig. 5 is the utility model voltage-stabilized power supply circuit structural representation.
The specific embodiment
Mountain bike intelligent braking taillight control system, comprises micro controller system U1, and micro controller system U1 connects respectively acceleration sensor circuit, gyro sensor circuit, voltage-stabilized power supply circuit and sound light alarming circuit.Described acceleration sensor circuit comprises described in acceleration pick-up that acceleration pick-up is for detection of the acceleration/accel of mountain bike; Described gyro sensor circuit comprises gyro sensor, and described gyro sensor is for detection of three axle drift angles of mountain bike; Described voltage-stabilized power supply circuit comprises voltage stabilizing chip U4.
Principle of work:
A kind of mountain bike intelligent braking of the utility model taillight control system, during unexpected deceleration in brake process, namely detects the acceleration/accel of bicycle.System detects the acceleration/accel of mountain bike by acceleration pick-up ADXL202 type, but this sensor testing process can be subject to car ambient interference of living in.As: descending, upward slope can add into gravity acceleration value, also have vibrations also can cause interference to acceleration detection.So in order more accurately to measure the acceleration/accel of mountain bike reality, also introduced gyro sensor in system: L3G4200D type, by detecting gyrostatic three axle angle values, by Single-chip Controlling, finally draws the value of mountain bike actual acceleration.Then by judging whether the value of actual acceleration reaches threshold value A, just can driving LED taillight and buzzer phone BUZ1.Taillight brightness has two states: 1, bicycle normally travels, and the amplitude of taillight amount can be little; 2, braking state, taillight brightness meeting increases a brightness on arm's length basis.
Fig. 2 is micro controller system and sound light alarming circuit.This circuit radical function is the value that reads gyro sensor L3G4200D and acceleration pick-up ADXL202, carries out anti-shake processing and mountain bike actual acceleration and converts, and then judges after threshold value, comes driving LED taillight and buzzer phone BUZ1.Circuit is by Atmega8 micro controller system U1, resistance R 5, R6, R7, R9, R10, R11, and NPN triode Q1, Q2, Q3, LED taillight diode D1, D2, buzzer phone BUZ1 forms.Atmega8 micro controller system is main control chip.Because gyroscope L3G4200D is that I2C agreement and micro controller system carry out data communication, so micro controller system PC4, PC5 pin (I2C functional pin) are connected to gyrostatic 2, No. 3 pins (I2C functional pin).Acceleration pick-up ADXL202 is to square-wave signal of micro controller system passback data, need to pass through the time timer function of micro controller system U1, therefore the PD4 of micro controller system U1, PD5 pin (timer function pin) are connected to 10, No. 9 pins of acceleration pick-up (signal output part).The PB5 of micro controller system U1, PB6, PB7 pin are connected respectively to the base stage of aerotron Q2, Q1, Q3 by resistance R 9, R10, R11, control aerotron conducting and close, thereby controlling LED taillight D1, D2 and buzzer phone BUZ1.PB5, PB6, PB7 are high level, aerotron conducting, and 5V power supply is by R7, R5, R6 resistance, aerotron Q2, Q1, Q3 are applied on diode D2, D1, buzzer phone BUZ1, then diode D2, D1 are just luminous, and buzzer phone BUZ1 just pipes, otherwise close aerotron cut-off.
Fig. 3 is gyro sensor L3G4200D circuit.Gyro sensor function is mainly to detect three axle drift angles of mountain bike, special brake taillight device part, so can measure mountain bike level inclination of living in by gyroscope.Thereby can assist acceleration pick-up ADXL202 acceleration/accel to be revised and anti-shake processing.Circuit is by gyro sensor U3, resistance R 1, R2, R3, and capacitor C 1, C2, C3, C4 form.Resistance R 2, R3 are 2, No. 3 pins (pull-up resistor of the SCL of I2C, SDA clock, data line).Capacitor C 1, C2 are power filters.R1, C3, C4 are the filtered external of the inner phaselocked loop of gyroscope.
Fig. 4 is acceleration pick-up ADXL202 circuit.Acceleration pick-up radical function detects the value of the acceleration/accel (deceleration/decel is negative value) of mountain bike.Therefore but because shake or mountain bike road of living in are not levels, can affect the value of detection, need to coordinate with above-mentioned gyroscope.This circuit is comprised of acceleration pick-up U2, resistance R 4, capacitor C 5, C6, C7.Resistance R 4 is connected to No. 5 pins (T2 square wave set of time pin) the signalization output square-wave cycle time of U2.C5, C6 are sensor filter capacitors.C7 is power filtering capacitor.Filter capacitor is used for guaranteeing that signal output is more stable.
Fig. 5 is voltage-stabilized power supply circuit.The radical function of this circuit be by two joint dry storage battery 3V boost in voltage to 5V, and under cell pressure fluctuation, keep 5V voltage stabilization.This circuit is by MAX1797 DC/DC voltage stabilizing chip U4, resistance R 8, and capacitor C 8, C9, inductance L 1, LED diode D3, switch S 1, battery B1 forms.Resistance R 8, D3 are power lights, and after switch S 1 is closed, D3 is will bright prompting power supply normal.C9 is 3V battery voltage regulation filtering, and C8 is 5V Voltage-output voltage regulation filtering, guarantees voltage stability, reduces and disturbs.L1 is the energy-storage travelling wave tube in DC/DC conversion process.
1), one-chip machine port initialization, gyroscope, the initialization of acceleration sensor internal register control flow chart step is as follows:; 2), controlling PB5 makes LED taillight D1 bright; 3), by I2C, read gyroscope three axle angle values; 4), by timer, read acceleration pick-up X, Y-axis accekeration; 5), according to detecting the actual mountain bike accekeration of data reduction a; 6), judge whether a is less than A, a is negative value when slowing down, so set threshold, is also a negative fixed value, slows down larger, a is just less; 7) if meet Rule of judgment,, control PB6, PB7 and be 1 and make LED taillight D2 bright, buzzer warning; 8), condition do not meet, and controls PB6, PB7 and is 0 LED taillight D2 is extinguished, buzzing stops; 9), end of program, return to step 3 circulation.
Claims (4)
1. mountain bike intelligent braking taillight control system, comprises micro controller system, it is characterized in that, micro controller system connects respectively acceleration sensor circuit, gyro sensor circuit, voltage-stabilized power supply circuit and sound light alarming circuit;
Described acceleration sensor circuit comprises described in acceleration pick-up that acceleration pick-up is for detection of the acceleration/accel of mountain bike; Described gyro sensor circuit comprises gyro sensor, and described gyro sensor is for detection of three axle drift angles of mountain bike; Described voltage-stabilized power supply circuit comprises voltage stabilizing chip (U4), and described voltage stabilizing chip (U4) connects battery (B1) by electronic component, described voltage-stabilized power supply circuit for by the 3V boost in voltage of battery (B1) to 5V and keep 5V burning voltage; Described sound light alarming circuit comprises: LED taillight, buzzer phone (BUZ1).
2. mountain bike intelligent braking taillight control system according to claim 1, is characterized in that, described acceleration pick-up adopts ADXL202 type.
3. mountain bike intelligent braking taillight control system according to claim 1, is characterized in that, described gyro sensor adopts L3G4200D type.
4. mountain bike intelligent braking taillight control system according to claim 1, is characterized in that, described voltage stabilizing chip (U4) adopts MAX1797 type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601535.5U CN203460990U (en) | 2013-09-28 | 2013-09-28 | Mountain bike intelligent braking tail light control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320601535.5U CN203460990U (en) | 2013-09-28 | 2013-09-28 | Mountain bike intelligent braking tail light control system |
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| CN203460990U true CN203460990U (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320601535.5U Expired - Fee Related CN203460990U (en) | 2013-09-28 | 2013-09-28 | Mountain bike intelligent braking tail light control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527857A (en) * | 2014-12-16 | 2015-04-22 | 袁静 | Automatic alarm tail lamp for bicycle |
| CN105197134A (en) * | 2015-08-20 | 2015-12-30 | 深圳市比奇诺科技有限公司 | Bicycle riding safety monitoring device, as well as bicycle and riding safety monitoring method using bicycle riding safety monitoring device |
| CN105730570A (en) * | 2014-12-08 | 2016-07-06 | 彭海英 | Brake warning lamp of self-power generation bicycle |
| WO2017024833A1 (en) * | 2015-08-11 | 2017-02-16 | 乐视控股（北京）有限公司 | Vehicle-lamp control method and system of cycling device |
-
2013
- 2013-09-28 CN CN201320601535.5U patent/CN203460990U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730570A (en) * | 2014-12-08 | 2016-07-06 | 彭海英 | Brake warning lamp of self-power generation bicycle |
| CN104527857A (en) * | 2014-12-16 | 2015-04-22 | 袁静 | Automatic alarm tail lamp for bicycle |
| WO2017024833A1 (en) * | 2015-08-11 | 2017-02-16 | 乐视控股（北京）有限公司 | Vehicle-lamp control method and system of cycling device |
| CN105197134A (en) * | 2015-08-20 | 2015-12-30 | 深圳市比奇诺科技有限公司 | Bicycle riding safety monitoring device, as well as bicycle and riding safety monitoring method using bicycle riding safety monitoring device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20140928 |
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| EXPY | Termination of patent right or utility model |