A kind of driver tired driving early warning braceletTechnical field
The present invention relates to driver tired driving early warning technology field, be specially a kind of driver tired driving early warning bracelet.
Background technology
Fatigue driving is the key factor causing vehicle accident.China occupies first place in the world because of road traffic injures and deaths number every year, and with the speed increase of annual 10%, the vehicle accident that fatigue driving causes is also with quickish speed increase.For Beijing, the vehicle accident caused because of fatigue accounts for more than the 20% of total number of accident.Fatigue driving has become as the key factor of vehicle accident, and the safety of life and property of people in serious threat；If able to quickly, in real time, effectively detect fatigue driving state and send early warning signal to driver, the probability that vehicle accident occurs will can be efficiently reduced.
Driving fatigue refers to that produced reaction level declines after the driving of a period of time.Bradykinesia, judge slow, stiff in the movements, rhythm is slow etc. is the tired main forms of driver.Various comprehensive studies show, whether the frequency of driver's arms swing and the heart rate of driver relatively straightforward sign driver can be in fatigue driving state.
Summary of the invention
Present invention aims to above-mentioned the deficiencies in the prior art, it is provided that a kind of driver tired driving early warning bracelet.
The technical scheme is that and be achieved in that: a kind of driver tired driving early warning hands ring, it is worn in driver's wrist, connect including bracelet main body and bracelet, described bracelet main body is provided with on and off switch, described bracelet main body includes attitude transducer, pulse transducer, clock module, vibrating motor, motor drives, voice alarm module, microcontroller and power module, described attitude transducer, pulse transducer, clock module, drive and control of electric machine end and voice alarm module are all electrical connected with microcontroller, described motor drive output and vibrating motor are electrical connected, described attitude transducer is in order to measure the 3-axis acceleration of driver's arm, described pulse transducer is in order to measure the heart rate of driver, described clock module is in order to provide accurately time signal, described vibrating motor is in order to cause vibration.
Preferably, described power module is that attitude transducer, pulse transducer, clock module, motor driving input, voice alarm module and microcontroller are powered, and described on and off switch controls power module output power supply.
Preferably, described attitude transducer adopts MPU6050 chip.
Preferably, described microcontroller adopts MSP430f149 low-power chip.
Compared with prior art, the invention has the beneficial effects as follows: present configuration is simple, wear conveniently, the state of driver is detected by attitude transducer and pulse transducer, can better judge whether driver is in fatigue state, when finding that driver is in fatigue state, point out driver by voice and vibrating motor.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but is not intended that any limitation of the invention.
Fig. 1 is present configuration schematic diagram；
Fig. 2 is inventive principle figure.
In figure: 1, bracelet main body, 11, on and off switch, 12, attitude transducer, 13, pulse transducer, 14, clock module, 15, vibrating motor, 16, motor drive, 17, voice alarm module, 18, microcontroller, 19, power module, 2, bracelet even.
Detailed description of the invention
nullRefer to Fig. 1-2，The present invention provides a kind of technical scheme: a kind of driver tired driving early warning bracelet，It is worn in driver's wrist，2 are connected including bracelet main body 1 and bracelet，Described bracelet main body 1 is provided with on and off switch 11，Described bracelet main body 1 includes attitude transducer 12、Pulse transducer 13、Clock module 14、Vibrating motor 15、Motor drives 16、Voice alarm module 17、Microcontroller 18 and power module 19，Described attitude transducer 12、Pulse transducer 13、Clock module 14、Motor drives 16 control ends and voice alarm module 17 to be all electrical connected with microcontroller 18，Described motor drives 16 outfans and vibrating motor 15 to be electrical connected，Described attitude transducer 12 is in order to measure the 3-axis acceleration of driver's arm，Described pulse transducer 13 is in order to measure the heart rate of driver，Described clock module 14 is in order to provide accurately time signal，Described vibrating motor 16 is in order to cause vibration.Described power module 19 is attitude transducer 12, pulse transducer 13, clock module 14, motor drive 16 inputs, voice alarm module 17 and microcontroller 18 to power, and described on and off switch 11 controls power module 19 output power supply.Described attitude transducer 12 adopts MPU6050 chip.Described microcontroller 18 adopts MSP430f149 low-power chip.
Operation principle: measured the 3-axis acceleration of driver's arm by attitude transducer 12, the heart rate of driver is measured by pulse transducer 13,3-axis acceleration and the heart rate of driver according to driver's arm judge whether driver is currently in fatigue driving state, when being in fatigue driving state, reported to the police by vibrating motor 15 and voice alarm module 17.
Embodiment provided above is the better embodiment of the present invention, only it is used for the present invention is conveniently described, not the present invention is done any pro forma restriction, any art has usually intellectual, if in the scope without departing from the carried technical characteristic of the present invention, utilize disclosed technology contents to be made the Equivalent embodiments that local is changed or modified, and without departing from the technical characteristic content of the present invention, all still fall within the scope of the technology of the present invention feature.