CN209051519U

CN209051519U - A kind of instruction taillight for bicycle safe traveling

Info

Publication number: CN209051519U
Application number: CN201821869961.6U
Authority: CN
Inventors: 张有容
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-13
Filing date: 2018-11-13
Publication date: 2019-07-02
Anticipated expiration: 2028-11-13

Abstract

The utility model embodiment discloses a kind of instruction taillight for bicycle safe traveling, and the instruction taillight includes the circuit board for being integrated in taillight enclosure interior, is integrated with microcontroller on the circuit board；The microcontroller is electrically connected with the motion process component including acceleration detection module and angular velocity detection module, and microcontroller is also electrically connected with LED dot array module；The motion process component is used to detect acceleration signal when bicycle brake by acceleration detection module, and motion process component is also used to detect turn signal when turning of bicycle by angular velocity detection module；Microcontroller is for acquiring the acceleration signal and turn signal and exporting LED control signal；LED dot array module is used to show LED lattice pixels when bicycle brake or turning according to LED control signal.The utility model can greatly improve the safety of night bicyclist and experience of riding, and reduce traffic accident rate, low in cost.

Description

A kind of instruction taillight for bicycle safe traveling

Technical field

The utility model relates to a kind of instruction taillights, more particularly to a kind of instruction tail for bicycle safe traveling Lamp.

Background technique

Bicycle is very popular as short distance traffic tool.When bicycle running is in road or cycle track, The safety problem of driving process is the problem of can not be ignored.Traditional bicycle generally uses passive reflective taillight, at night When driving, only have the function of that driver is reminded to have bicycle here.However, bicycle is similar with pedestrian, the two all has pole Big traveling is random, it is easy to unexpected lane change and be not easy to be discovered by other people, so as to cause traffic accident, especially night Between it is especially serious when driving.

Existing bicycle lacks the alarming devices such as automatic taillight, the row in bicycle brake or steering procedure, in lane People or vehicle hardly notice the brake of bicycle or turn to behavior, and accordingly, there exist biggish security risks.In order to improve voluntarily The safety of vehicle, partially self vehicle fan can be opened in the taillight of bicycle tail simple to install, taillight by conducting wire and key Connection connects, then key switch is mounted on Chinese herbaceous peony portion, and this taillight generally requires driver and manually controls, and in brake, drives Person is switched by operation button opens taillight to illustrate to brake, to remind periphery pedestrian or vehicle；At the same time, this easy Taillight does not have reminding turning, has a single function, inconvenient for operation.Need a kind of traveling peace of new technical solution solution bicycle Full problem.

Utility model content

The utility model embodiment is designed to provide a kind of instruction taillight for bicycle safe traveling, and reduction is ridden The operation difficulty of passerby improves the safety of cycling.

To achieve the above object, the utility model embodiment provides a kind of instruction taillight for bicycle safe traveling, The instruction taillight includes the circuit board for being integrated in taillight enclosure interior, is integrated with microcontroller on the circuit board；The electricity Microcontroller is integrated on the plate of road；Microcontroller include main control chip U1, resistance R1, crystal oscillator Y1, crystal oscillator Y2, Capacitor C1, capacitor C2, capacitor C3 and capacitor C4.Capacitor C1 and capacitor C2 are in parallel, and crystal vibration is connected between capacitor C1 and capacitor C2 Device Y1 is swung, crystal oscillator Y1 connects the 3rd pin and the 4th pin of main control chip U1 with one end of capacitor C2；Capacitor C3 and electricity It is in parallel to hold C4, connects crystal oscillator Y2 between capacitor C3 and capacitor C4, crystal oscillator Y2 is parallel with resistance R1, capacitor C3, One end of crystal oscillator Y2 and resistance R1 cross after connect main control chip U1 the 5th pin, capacitor C4, crystal oscillator Y2 and The other end of resistance R1 connects the 6th pin of main control chip U1 after crossing.

As for bicycle safe travel instruction taillight preferred embodiment, the microcontroller be electrically connected with including The motion process component of acceleration detection module and angular velocity detection module, microcontroller are also electrically connected with LED dot array module； The motion process component is used to detect acceleration signal when bicycle brake, motion process group by acceleration detection module Part is also used to detect turn signal when turning of bicycle by angular velocity detection module；Microcontroller is for acquiring the acceleration Degree signal and turn signal simultaneously export LED control signal；LED dot array module is used to show bicycle brake according to LED control signal LED lattice pixels when vehicle or turning.

As the preferred embodiment of the instruction taillight travelled for bicycle safe, the microcontroller is used STM32F103C8T6.Microcontroller uses STM32F103C8T6 main control chip, is extended with it and completes MPU6050 communication, LED point The functions such as battle array display.

As the preferred embodiment of the instruction taillight travelled for bicycle safe, the LED dot array module uses 2088BS The display screen that common-anode points are 8 × 8.Using 2088BS common-anode LED dot array module, single-chip microcontroller directly drives output, passes through The mode of software repeating query carries out LED and lights, 100 frame per second, and brightness is high, and even intensity, prompting has excellent performance, may be implemented various 8 × 8 dot matrix animation effects.

As the preferred embodiment of the instruction taillight travelled for bicycle safe, the microcontroller is electrically connected with power supply Module, the power supply module use charged lithium cells, and power supply module is used to be the microcontroller, power supply module and LED dot matrix Module is powered.The rechargeable lithium battery of single-unit De Lipu 18650 can be used in power supply module, is guaranteeing operating voltage 3.8V's In the case of, due to its Rechargeability, greatly strengthen user experience and sustainability.

As the preferred embodiment of the instruction taillight travelled for bicycle safe, it includes three that the motion process component, which uses, The six axis motion process component of MPU6050 of axis accelerometer and gyroscope.

As the preferred embodiment of the instruction taillight travelled for bicycle safe, the microcontroller and the motion process Component carries out data communication by IIC interface.By the communication of configuration and IIC interface mode to its inside DMP, reads and add Speed and angular velocity signal.With existing Kalman filtering algorithm, attitude algorithm is carried out to parameter, obtains YAW (around Y-axis Rotation, is also yaw angle), Pitch (being rotated around X-axis, also referred to as pitch angle), Roll (around Z axis rotation, also cry rolling Angle), then the logic function shown from angle signal to LED is realized by program.

As for bicycle safe travel instruction taillight preferred embodiment, the microcontroller be electrically connected with including The motion process component of mercury switch, the mercury switch are used to detect acceleration signal when bicycle brake.Mercury switch It is to have the characteristics that good electric conductivity and mobility using mercury this carries out open and close control to electric loop.It is by glass The compositions such as pipe, mercury, fixed electrode, lead, since mercury can flow, as long as acceleration reaches setting value or more, mercury is opened Close can on-off, thus can be used as vibration sensing element use.

As for bicycle safe travel instruction taillight preferred embodiment, the microcontroller be electrically connected with including The motion process component of Hall acceleration transducer, the Hall acceleration transducer are used to detect acceleration when bicycle brake Spend signal.Hall acceleration transducer is a kind of magnetoelectric transducer based on Hall effect, has, output high to Magnetic susceptibility Signal stabilization, the features such as frequency response is high, anti-electromagnetic interference capability is strong, structure is simple, easy to use.Its working principle is that ought be suddenly When the rotating mechanism of your acceleration transducer rotates under outer driving effect, it will drive permanent magnet rotation, pass through Hall element Magnetic field will generate cyclically-varying, cause hall element output voltage to change, form stable arteries and veins by subsequent conditioning circuit processing Voltage signal is rushed, the output signal as bicycle acceleration.

As for bicycle safe travel instruction taillight preferred embodiment, the microcontroller be electrically connected with including The motion process component of gravity sensor or accelerometer, the gravity sensor or accelerometer are for detecting bicycle brake When acceleration or angular velocity signal.Cantilevered shifter is made using elastic sensing element in gravity sensor, elastic with using Energy-stored spring made of sensing element drives electric contact, completes the conversion from Gravity changer to electric signal.Pass through gravity sensitive Device measures the acceleration due to caused by gravity, can calculate the tilt angle of bicycle with respect to the horizontal plane.It is dynamic by analyzing State acceleration can analyze out the mobile mode of bicycle.

Existing accelerometer is by detection quality (also referred to as sensitive-mass), bearing, potentiometer, spring, damper and shell Composition.The supported constraint of detection quality can only be moved along an axis, this axis is frequently referred to input shaft or sensitive axes.Work as instrument When shell is accelerated with carrier along sensitive axis direction, according to Newton's law, the detection mass force with certain inertia Figure keeps its original motion state constant.It will generate relative motion between shell, make camber of spring, then detect quality It accelerates therewith under spring force.The inertia force generated when spring force is accelerated with detection quality balances each other When, just there is no relative motions between detection quality and shell, and at this moment the deformation of spring reflects by the size of measuring acceleration.

The utility model embodiment has the advantages that microcontroller is electrically connected with motion process component and LED dot matrix Module；Motion process component is equipped with acceleration detection module and angular velocity detection module, certainly by the detection of acceleration detection module Acceleration signal when driving brake detects turn signal when turning of bicycle by angular velocity detection module；Pass through micro-control Device acquisition acceleration signal and turn signal processed simultaneously export LED control signal；By LED dot array module according to LED control signal Show LED lattice pixels when bicycle brake or turning.The utility model can be realized accurately during bicycle running The driving posture turned left, turn right, stopped is predicted behind vehicle by LED dot matrix and is kept away in time It allows, the especially safety of night bicyclist can be greatly improved and experience of riding, reduce traffic accident rate.While at This is cheap, and set of device Costco Wholesale only needs 40 yuan or so, and 18650 rechargeable lithium battery of a Jie Delipu can be used, have compared with Strong cruising ability and reusable ability, and the design of ceiling voltage 3.8V, exempt the hidden danger of electric shock.

Detailed description of the invention

Fig. 1 is the instruction tail lamp structure schematic diagram provided by the embodiment of the utility model for bicycle safe traveling；

Fig. 2 is the instruction taillight main control chip signal provided by the embodiment of the utility model for bicycle safe traveling Figure；

Fig. 3 is the instruction taillight LED dot array module cloth provided by the embodiment of the utility model for bicycle safe traveling Office's schematic diagram；

Fig. 4 is the instruction tail lamp circuit principle signal provided by the embodiment of the utility model for bicycle safe traveling Figure；

In figure: 1, microcontroller；2, acceleration detection module；3, angular velocity detection module；4, motion process component；5, LED dot array module；6, power supply module.

Specific embodiment

The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages and effect of the utility model easily.

It should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification to be taken off The content shown is not intended to limit the utility model enforceable restriction item so that those skilled in the art understands and reads Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing Under the effect of the utility model can be generated and the purpose that can reach, should all still it fall in the revealed technology of the utility model In the range of Rong get Neng is covered.Meanwhile cited such as "upper", "lower", " left side ", the right side in this specification ", the use of " centre " Language is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, the change of relativeness or Adjustment, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the present embodiment provides a kind of instruction taillights for bicycle safe traveling, refer to Show that taillight includes the circuit board for being integrated in taillight enclosure interior, microcontroller 1 is integrated on circuit board；Microcontroller 1 electrically connects It is connected to the motion process component 4 including acceleration detection module 2 and angular velocity detection module 3, microcontroller 1 is also electrically connected with LED dot array module 5；Motion process component 4 is used to detect acceleration letter when bicycle brake by acceleration detection module 2 Number, motion process component 4 is also used to detect turn signal when turning of bicycle by angular velocity detection module 3；Microcontroller 1 For acquiring acceleration signal and turn signal and exporting LED control signal；LED dot array module 5 is used for according to LED control signal Show LED lattice pixels when bicycle brake or turning.

Motion process component 4 is using the six axis motion process component of MPU6050 for including three axis accelerometer and gyroscope.It is micro- Controller 1 and motion process component 4 pass through IIC interface progress data communication.It is connect by configuration to its inside DMP and IIC The communication of mouth mode, reads acceleration and angular speed signal.With existing Kalman filtering algorithm, posture solution is carried out to parameter It calculates, obtains YAW (rotating around Y-axis, be also yaw angle), Pitch (rotating around X-axis, also referred to as pitch angle), Roll and (surround Z Axis rotation, is also roll angle), then the logic function shown from angle signal to LED is realized by program.

Microcontroller 1 uses STM32F103C8T6.Microcontroller 1 uses STM32F103C8T6 main control chip, is expanded with it The functions such as MPU6050 communication, LED lattice display are completed in exhibition.STM32F103C8T6 is a kind of based on ARM Cortex-M kernel 32 microcontrollers 1 of STM32 series.STM32F103C8T6's is encapsulated as LQFP-48, is that the small shape four directions of 48 pins is flat Flat package shape.Voltage 2V~3.6V, operating temperature are -40 DEG C~85 DEG C.

Referring to fig. 2, microcontroller 1 includes STM32F103C8T6 main control chip U1, resistance R1, crystal oscillator Y1, crystal Oscillator Y2, capacitor C1, capacitor C2, capacitor C3 and capacitor C4.Capacitor C1 and capacitor C2 are in parallel, connect between capacitor C1 and capacitor C2 Crystal oscillator Y1 is met, crystal oscillator Y1 connects the 3rd pin of STM32F103C8T6 main control chip U1 with one end of capacitor C2 With the 4th pin.Capacitor C3 and capacitor C4 are in parallel, and crystal oscillator Y2, crystal oscillator Y2 are connected between capacitor C3 and capacitor C4 It is parallel with resistance R1, one end of capacitor C3, crystal oscillator Y2 and resistance R1 connect STM32F103C8T6 main control chip after crossing The 5th pin of U1, the other end of capacitor C4, crystal oscillator Y2 and resistance R1 connect STM32F103C8T6 master control after crossing The 6th pin of chip U1.

LED dot array module 5 use 2088BS common-anode points for 8 × 8 display screen.Use 2088BS common-anode LED point Array module 5, single-chip microcontroller directly drive output, and LED is carried out by way of software repeating query and is lighted, 100 frame per second, and brightness is high, by force Uniformly, prompting is had excellent performance degree, and various 8 × 8 dot matrix animation effects may be implemented.

Microcontroller 1 is electrically connected with power supply module 6, and power supply module 6 uses charged lithium cells, and power supply module 6 is for being Microcontroller 1, power supply module 6 and LED dot array module 5 are powered.What power supply module 6 can be used single-unit De Lipu 18650 can Charged lithium cells, due to its Rechargeability, greatly strengthen user experience and can hold in the case where guaranteeing operating voltage 3.8V Continuous property.

In one embodiment for the instruction taillight of bicycle safe traveling, microcontroller 1 is electrically connected with including water The motion process component 4 of silver switch, mercury switch are used to detect acceleration signal when bicycle brake.Mercury switch is to utilize Mercury has the characteristics that good electric conductivity and mobility, and this carries out open and close control to electric loop.It is by glass tube, water The compositions such as silver, fixed electrode, lead, since mercury can flow, as long as acceleration reaches setting value or more, mercury switch can With on-off, thus the sensing element that can be used as vibration uses.

In one embodiment for the instruction taillight of bicycle safe traveling, microcontroller 1 is electrically connected with including suddenly The motion process component 4 of your acceleration transducer, Hall acceleration transducer are used to detect acceleration letter when bicycle brake Number.Hall acceleration transducer is a kind of magnetoelectric transducer based on Hall effect, has the high, output signal to Magnetic susceptibility Stablize, the features such as frequency response is high, anti-electromagnetic interference capability is strong, structure is simple, easy to use.Its working principle is that when Hall adds When the rotating mechanism of velocity sensor rotates under outer driving effect, permanent magnet rotation will drive, across the magnetic of Hall element Field will generate cyclically-varying, and hall element output voltage is caused to change, and stable pulse electricity is formed by subsequent conditioning circuit processing Press signal, the output signal as bicycle acceleration.

In one embodiment for the instruction taillight of bicycle safe traveling, microcontroller 1 is electrically connected with including weight When the motion process component 4 of force snesor or accelerometer, gravity sensor or accelerometer are used to detect bicycle brake Acceleration or angular velocity signal.Cantilevered shifter is made using elastic sensing element in gravity sensor, sensitive with using elasticity Energy-stored spring made of element drives electric contact, completes the conversion from Gravity changer to electric signal.It is surveyed by gravity sensor The acceleration due to caused by gravity is measured, the tilt angle of bicycle with respect to the horizontal plane can be calculated.Added by analysis dynamic Speed can analyze out the mobile mode of bicycle.

Those skilled in the art utilizes the change at inclination angle during cycling according to the technical inspiration of the technical program Change, judges turning of bicycle posture, and then show corresponding left and right rotaring signal.And when bicycle all standing, utilize direction of riding Unexpected backward acceleration shows the stop signal of all light.The members such as mercury switch, gravity sensor or accelerometer can be used Part is realized.

The utility model is electrically connected with motion process component 4 and LED dot array module 5 by microcontroller 1；Motion process Component 4 is equipped with acceleration detection module 2 and angular velocity detection module 3, when detecting bicycle brake by acceleration detection module 2 Acceleration signal, by angular velocity detection module 3 detect turning of bicycle when turn signal；It is acquired by microcontroller 1 Acceleration signal and turn signal simultaneously export LED control signal；It is shown voluntarily by LED dot array module 5 according to LED control signal LED lattice pixels when vehicle brake or turning.The utility model turns left during capable of accurately realizing bicycle running, is right The driving posture for turning, stopping is predicted behind vehicle by LED dot matrix and is avoided in time, can It greatly improves the especially safety of night bicyclist and experience of riding, reduces traffic accident rate.It is low in cost simultaneously, Set of device Costco Wholesale only needs 40 yuan or so, and 18650 rechargeable lithium battery of a Jie Delipu can be used, there is stronger continuation of the journey Ability and reusable ability, and the design of ceiling voltage 3.8V, exempt the hidden danger of electric shock.

Although above having made detailed description to the utility model with generality explanation and specific embodiment, On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art 's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want Seek the range of protection.

Claims

1. a kind of instruction taillight for bicycle safe traveling, the instruction taillight includes the electricity for being integrated in taillight enclosure interior Road plate, it is characterised in that: microcontroller (1) is integrated on the circuit board；Microcontroller (1) includes main control chip U1, resistance R1, crystal oscillator Y1, crystal oscillator Y2, capacitor C1, capacitor C2, capacitor C3 and capacitor C4, capacitor C1 and capacitor C2 are in parallel, Crystal oscillator Y1 is connected between capacitor C1 and capacitor C2, crystal oscillator Y1 connects main control chip U1's with one end of capacitor C2 3rd pin and the 4th pin；Capacitor C3 and capacitor C4 are in parallel, and crystal oscillator Y2, crystal vibration are connected between capacitor C3 and capacitor C4 It swings device Y2 and is parallel with resistance R1, one end of capacitor C3, crystal oscillator Y2 and resistance R1 connect the 5th of main control chip U1 after crossing Pin, the other end of capacitor C4, crystal oscillator Y2 and resistance R1 connect the 6th pin of main control chip U1 after crossing.

2. a kind of instruction taillight for bicycle safe traveling according to claim 1, it is characterised in that: the micro-control Device (1) processed is electrically connected with the motion process component (4) including acceleration detection module (2) and angular velocity detection module (3), micro- Controller (1) is also electrically connected with LED dot array module (5)；The motion process component (4) is used to pass through acceleration detection module (2) acceleration signal when bicycle brake is detected, motion process component (4) is also used to examine by angular velocity detection module (3) Survey turn signal when turning of bicycle；Microcontroller (1) is for acquiring the acceleration signal and turn signal and exporting LED Control signal；LED dot array module (5) is used to show LED dot matrix picture when bicycle brake or turning according to LED control signal Element.

3. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: the micro-control Device (1) processed uses STM32F103C8T6.

4. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: the LED Lattice module (5) use 2088BS common-anode points for 8 × 8 display screen.

5. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: the micro-control Device (1) processed is electrically connected with power supply module (6), and the power supply module (6) uses charged lithium cells, and power supply module (6) is for being The microcontroller (1), power supply module (6) and LED dot array module (5) are powered.

6. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: the movement Processing component (4) is using the six axis motion process component (4) of MPU6050 for including three axis accelerometer and gyroscope.

7. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: the micro-control Device (1) processed and the motion process component (4) pass through IIC interface progress data communication.

8. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: the micro-control Device (1) processed is electrically connected with the motion process component (4) including mercury switch, and the mercury switch is for detecting bicycle brake When acceleration signal.

9. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: the micro-control Device (1) processed is electrically connected with the motion process component (4) including Hall acceleration transducer, and the Hall acceleration transducer is used Acceleration signal when detecting bicycle brake.

10. a kind of instruction taillight for bicycle safe traveling according to claim 2, it is characterised in that: described micro- Controller (1) is electrically connected with the motion process component (4) including gravity sensor or accelerometer, the gravity sensor or Accelerometer is used to detect acceleration signal when bicycle brake.