CN110262084A - Whether a kind of driver for identification diverts one's attention the sunglasses driven and method - Google Patents
Whether a kind of driver for identification diverts one's attention the sunglasses driven and method Download PDFInfo
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- CN110262084A CN110262084A CN201910459514.6A CN201910459514A CN110262084A CN 110262084 A CN110262084 A CN 110262084A CN 201910459514 A CN201910459514 A CN 201910459514A CN 110262084 A CN110262084 A CN 110262084A
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C11/00—Non-optical adjuncts; Attachment thereof
- G02C11/10—Electronic devices other than hearing aids
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Acoustics & Sound (AREA)
- General Health & Medical Sciences (AREA)
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- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Emergency Alarm Devices (AREA)
- Traffic Control Systems (AREA)
Abstract
Whether divert one's attention the sunglasses driven and method the invention discloses a kind of driver for identification, belongs to field of traffic safety.The sunglasses include sunglasses subsystem and onboard subsystem, and the motion information of driver head is acquired by 6 axis accelerometers being embedded in sunglasses bracket bridge of the nose bridge, and the transmission of data is carried out using bluetooth module.The method of the invention judges whether driver wears the sunglasses according to the data of 6 axis accelerometers, and demarcates the data area of 6 axis accelerometers under non-driving condition of diverting one's attention.Microprocessor is divert one's attention early warning according to whether the data of GPS carry out driving, in conjunction with the millimetre-wave radar data for being mounted on front of the car, if confirmation driver is in driving condition of diverting one's attention, and from vehicle knock into the back front truck risk it is higher, phonetic warning signal will be issued.When driver does not use the sunglasses, sunglasses can carry out wireless charging on sunglasses bracket.The configuration of the present invention is simple, reliable operation can effectively solve the problems, such as that the driving of wear dark glasses driver is divert one's attention.
Description
Technical field
The present invention relates to field of traffic safety, in particular to a kind of driver for identification whether divert one's attention the sunglasses driven and
Method.
Background technique
In traffic accident, rear-end impact is a kind of relatively conventional accident form.Although matching in current certain luxury cars
It is equipped with front truck collision avoidance system, but most of vehicle does not have this function also at present.The main reason in rear-end impact accident
It is since rear car driver distraction drives, rear car driver is not in the case where having to notice front truck brake deceleration in time
's.
In driving procedure, especially under the fair weather of summer, it is anti-dazzle that most driver can wear sunglasses.For chasing after
The reason of tail accident occurs and driver can wear such case of sunglasses, and the present invention proposes that a kind of utilization sunglasses prevent from driving and divides
The scheme of the heart.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of ink whether driver for identification diverts one's attention to drive
Mirror and method.The present invention can effectively solve the problems, such as the driving of diverting one's attention of wear dark glasses driver.And the inventive structure is simple and reliable, at
This is small and is suitble to be widely popularized.
The purpose of the present invention is what is be achieved through the following technical solutions:
Whether a kind of driver for identification diverts one's attention the sunglasses driven, including sunglasses subsystem and onboard subsystem,
The sunglasses subsystem includes sunglasses main body, 6 axis accelerometers, bluetooth module A, battery module and wireless charging Denso
Set A, in which:
6 axis accelerometer is embedded in the bridge of the nose bridge of the sunglasses main body, for acquiring the head movement of driver
Information；
The bluetooth module A is embedded in the pile crown of the sunglasses main body, the bluetooth module A and 6 axle acceleration
Bluetooth connection is counted, for receiving and sending the data information of the 6 axis accelerometer acquisition；
The battery module is in elongated strip, is embedded in the temple of the sunglasses main body, the battery module and bluetooth
Modules A, 6 axis accelerometers are electrically connected, and are responsible for providing power supply to entire sunglasses subsystem；
The wireless charging device A is embedded in the frame of the sunglasses main body, is used to charge to the battery module；
The onboard subsystem includes sunglasses holder device, bluetooth module B, GPS module, ESR millimetre-wave radar, wireless charging
Electric installation B, microprocessor and phonetic alarm device；The sunglasses holder device, bluetooth module B, GPS module, wireless charging Denso
It sets B, microprocessor and phonetic alarm device to be all positioned in inside instrument board at the free time, the ESR millimetre-wave radar is mounted on vehicle
For acquiring the opposite relative distance and relative velocity from vehicle of front vehicles in two front end bumper；Wherein:
The sunglasses holder device is in quadrangular frustum pyramid shaped, and the two sides of top surface are symmetrically arranged with two for placing sunglasses main body thereon
The hole of temple, it is rack-mounted that the bluetooth module B, GPS module, wireless charging device B and microprocessor are arranged at the sunglasses branch
Set inside, the phonetic alarm device is arranged in the upper top surface of the sunglasses holder device, the bluetooth module B, GPS module,
ESR millimetre-wave radar and phonetic alarm device are electrically connected with the microprocessor by conducting wire respectively；
When sunglasses main body is placed on the sunglasses holder device, the wireless charging device B gives the wireless charging Denso
Set A charging；
The bluetooth module B sends received data for receiving data transmitted by the bluetooth module A
To microprocessor；
The GPS module is responsible for acquiring the velocity information of vehicle, and velocity information collected is sent to microprocessor；
The microprocessor is responsible for handling the data that 6 axis accelerometers and GPS module are sent, judge driver whether be
Divert one's attention to drive, and controls phonetic alarm device and carry out voice prompting.
Further, 6 axle acceleration is calculated as gyroscope+acceleration transducer, the model of 6 axis accelerometer
6 axis of MPU-6500.
Further, the bluetooth module A and bluetooth module B is 4.0 chip of AR3002 bluetooth.
Further, the GPS module is GSD4e GPS chip.
Further, the microprocessor is ARM9 processor, concrete model S3C2410.
Further, the phonetic alarm device is PM5020 speech chip.
Further, the battery module is 501235 polymer batteries；The wireless charging device A and wireless charging Denso
Set the receiving end and transmitting terminal that B is respectively XKT-412A wireless power supply module.
A method of identifying whether driver diverts one's attention to drive under sunglasses based on wearing, comprising the following steps:
Step 1, judge whether driver wears the sunglasses that driver distraction drives for identification: driver being worn first
6 parameters of driver head's movement that 6 axis accelerometers acquire in the case of the sunglasses are demarcated, 6 parameter packets
3 acceleration values and 3 magnitude of angular velocities in 3 orthogonal directions are included, specifically: driver is in the feelings for wearing the sunglasses
In different kinds of roads condition downward driving, the distribution character and distribution model of 6 parameters of 6 axis accelerometer of microprocessor records under condition
It encloses, and determines the range V of calibrationMark；Microprocessor continuously records the data V of 6 parameters of one minute 6 axis accelerometerIt surveysIf 6
A parameter before demarcate in the range of, i.e. VIt surveys≤VMark, then judge that driver has worn the sunglasses；Otherwise driver does not have
Have and wears the sunglasses；
Step 2, the non-driving condition head portion of diverting one's attention of driver horizontally rotates angle calibration: driver wears the sunglasses simultaneously
Horizontally rotate head and normally watch left-hand mirror to the range between right rear view mirror, records gyroscope in 6 axis accelerometers and adopted
Collection horizontally rotates the data area of angle, and demarcating this data area is the data area under non-driving condition of diverting one's attention；
Step 3, judge whether to divert one's attention to judge by GPS speed: when GPS speed is less than 40km/h, microprocessor is not
It carries out diverting one's attention to judge；When GPS speed is greater than 40km/h, microprocessor starts to acquire 6 axis accelerometers and ESR millimetre-wave radar
The data of measurement, and carry out diverting one's attention to judge；
Step 4, driver distraction's state recognition: using 3 seconds as the period is judged, microprocessor analyzes 6 axle accelerations in real time
The data distribution characteristic of meter shows if the measurement data of gyroscope exceeds the range that step 2 is demarcated in 6 axis accelerometers
Driver is not concerned with front road at this time；
Step 5, it knocks into the back risk assessment: if in the case where step 4 identifies that driver is not concerned with front road,
The front vehicle of ESR millimetre-wave radar measurement with less than 80m, and the numerical value of TTC subtracts less than 5 seconds, and persistently from a distance from vehicle
Small, microprocessor will confirm that driver is in and divert one's attention driving condition at this time, and from vehicle knock into the back front truck risk it is higher；
Step 6, voice alarm: diverting one's attention driving condition if microprocessor judges that driver is in, and knocks into the back front truck from vehicle
The higher situation of risk under, phonetic alarm device will issue alarm signal at this time, remind driver attentively to drive, avoid knocking into the back
The generation of accident.
The invention has the benefit that
It is of the present invention that the method for whether diverting one's attention to drive driven for identification, it can be by being embedded in sunglasses bracket bridge of the nose bridge
6 interior axis accelerometers acquire the motion information of driver head, utilize the bluetooth module to carry out the transmission of data.When 6 axis add
When the data of speedometer measurement are more than that driver normally sees parameter area of the left-hand mirror to right rear view mirror, show to drive not at this time
Front road is not watched attentively.The front truck measured in conjunction with ESR millimetre-wave radar and the relative distance from vehicle and relative velocity can
It assesses and knocks into the back the risk class of front truck from vehicle, before microprocessor judges that driver does not watch road ahead attentively and knocks into the back from vehicle
The risk class of vehicle is higher, and phonetic alarm device will be sounded an alarm to driver, and driver safety is reminded to drive.
Driver for identification of the present invention whether divert one's attention drive sunglasses, be based on sunglasses system and vehicle-mounted subsystem
System mainly uses 6 axis accelerometers, bluetooth module, battery module and wireless charging device.Sunglasses less energy-consuming of the present invention,
Design simple, high reliablity.And the sunglasses can be placed in the case where not using on sunglasses holder device carry out automatically without
Line charge electricity, easy to use, intelligence degree is high.The front truck of sunglasses subsystem combination ESR millimetre-wave radar acquisition with from vehicle
Relative motion movement relation for identification wear dark glasses driver whether divert one's attention drive have good effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sunglasses subsystem of the present invention；
Fig. 2 is the structural schematic diagram of onboard subsystem of the present invention；
Fig. 3 is ESR millimetre-wave radar structural schematic diagram of the present invention；
Fig. 4 be it is of the present invention identification driver whether divert one's attention drive method schematic process flow diagram；
Wherein, 1-6 axis accelerometer, 2- wireless charging device A, 3- bluetooth module A, 4- battery module, 5- sunglasses bracket
Device, 6- wireless charging device B, 7- microprocessor, 8- bluetooth module B, 9-GPS module, 10- phonetic alarm device, 11-ESR
Millimetre-wave radar.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Whether a kind of driver for identification diverts one's attention the sunglasses driven, including sunglasses subsystem and onboard subsystem,
As shown in Figure 1, the sunglasses subsystem includes sunglasses main body, 6 axis accelerometers 1, bluetooth module A3, battery module
4 and wireless charging device A2, in which:
6 axis accelerometer 1 is embedded in the bridge of the nose bridge of the sunglasses main body, for acquiring the head movement of driver
Information.6 axis accelerometer 1 is built in the bridge of the nose bridge of mirror holder, it, thus can be on the bilateral symmetry line of mirror holder
Guarantee when driver wears the sunglasses, the motion information for driving head can be collected more accurately.6 axle acceleration
Meter 1 is gyroscope+acceleration transducer, and the model of 6 axis accelerometer 1 is chosen as 6 axis of MPU-6500.
The bluetooth module A3 is embedded in the pile crown of the sunglasses main body, and the bluetooth module A3 and 6 axis accelerate
Degree 1 bluetooth connection of meter, for receiving and sending the data information that 6 axis accelerometer 1 acquires.Specifically, 6 axis accelerates
Degree meter 1 has a Bluetooth function, and the bluetooth module A3 has a communication interface, the bluetooth module A3 by the communication interface and
The connection of 6 axis accelerometers 1, the communication interface can be IIC interface, SPI interface or uart interface, and the bluetooth module A3 is excellent
It is selected as the bluetooth module of low-power consumption, small size, for example is 4.0 chip of AR3002 bluetooth.
The battery module 4 is in elongated strip, is embedded in the temple of the sunglasses main body, the battery module 4 and indigo plant
Tooth modules A 3,6 axis accelerometers 1 are electrically connected, and are responsible for providing power supply, 4 type of battery module to entire sunglasses subsystem
Number it is chosen as 501235 polymer batteries.
The wireless charging device A2 is embedded in the frame of the sunglasses main body, is used to charge to the battery module 4.
The onboard subsystem include sunglasses holder device 5, bluetooth module B8, GPS module 9, ESR millimetre-wave radar 11,
Wireless charging device B6, microprocessor 7 and phonetic alarm device 10；The sunglasses holder device 5, bluetooth module B8, GPS module
9, wireless charging device B6, microprocessor 7 and phonetic alarm device 10 are all positioned in inside instrument board at the free time, the ESR milli
Metre wave radar 11 is mounted in the front end bumper of vehicle two relatively from the relative distance of vehicle and relatively fast for acquiring front vehicles
Degree；Wherein:
The sunglasses holder device 5 is in quadrangular frustum pyramid shaped, and the two sides of top surface are symmetrically arranged with two for placing sunglasses master thereon
The hole of somascope leg, the bluetooth module B8, GPS module 9, wireless charging device B6 and microprocessor 7 are arranged at the sunglasses
Inside holder device 5, the upper top surface of the sunglasses holder device 5, the bluetooth module is arranged in the phonetic alarm device 10
B8, GPS module 9, ESR millimetre-wave radar 11 and phonetic alarm device 10 are electrically connected with the microprocessor 7 by conducting wire respectively.
When driver does not use sunglasses, sunglasses main body is placed on the sunglasses holder device 5, the wireless charging
Device B6 charges to the wireless charging device A2.Wireless charging device A2 and wireless charging device B6 be respectively XKT-412A without
The receiving end of line power supply module and transmitting terminal.Specifically, the receiving coil of the wireless charging device A2 is built in two sunglasses
In frame, wireless charging device A2 can receive electric energy out of wireless charging device B6, and the electric energy received is stored in battery
In module 4.
The bluetooth module B8 sends out received data for receiving data transmitted by the bluetooth module A3
Microprocessor 7 is given, bluetooth module B8 is selected as 4.0 chip of AR3002 bluetooth.
The GPS module 9 is responsible for the velocity information of acquisition vehicle, and velocity information collected is sent to microprocessor
7, the GPS module 9 is GSD4e GPS chip.
The data that the microprocessor 7 is responsible for 6 axis accelerometers 1 of processing and GPS module 9 is sent, judge that driver is
No is to divert one's attention to drive, and control phonetic alarm device 10 and carry out voice prompting.The microprocessor 7 is ARM9 processor, specifically
Model S3C2410.The phonetic alarm device 10 is PM5020 speech chip.
As shown in figure 4, a kind of method that whether identification driver diverts one's attention to drive under sunglasses based on wearing, including following step
It is rapid:
Step 1, judge whether driver wears the sunglasses that driver distraction drives for identification: driver being worn first
6 parameters of driver head's movement that 6 axis accelerometers acquire in the case of the sunglasses are demarcated, 6 parameter packets
3 acceleration values and 3 magnitude of angular velocities in 3 orthogonal directions are included, specifically: driver is in the feelings for wearing the sunglasses
In different kinds of roads condition downward driving, the distribution character and distribution model of 6 parameters of 6 axis accelerometer of microprocessor records under condition
It encloses, and determines the range V of calibrationMark；Microprocessor continuously records the data V of 6 parameters of one minute 6 axis accelerometerIt surveysIf 6
A parameter before demarcate in the range of, i.e. VIt surveys≤VMark, then judge that driver has worn the sunglasses；Otherwise driver does not have
Have and wears the sunglasses.
Step 2, the non-driving condition head portion of diverting one's attention of driver horizontally rotates angle calibration: driver wears the sunglasses simultaneously
Horizontally rotate head and normally watch left-hand mirror to the range between right rear view mirror, records gyroscope in 6 axis accelerometers and adopted
Collection horizontally rotates the data area of angle, and demarcates this data area wMark。
Step 3, judge whether to divert one's attention to judge by GPS speed: when GPS speed is less than 40km/h, microprocessor is not
It carries out diverting one's attention to judge；When GPS speed is greater than 40km/h, microprocessor starts to acquire 6 axis accelerometers and ESR millimetre-wave radar
The data of measurement, and carry out diverting one's attention to judge.
Step 4, driver distraction's state recognition: using 3 seconds as the period is judged, microprocessor analyzes 6 axle accelerations in real time
The data distribution characteristic of meter, if in 6 axis accelerometers gyroscope measurement data wIt surveysBeyond the range that step 2 is demarcated, i.e.,
wIt surveys>wMarkWhen, show that driver is not concerned with front road at this time.
Step 5, it knocks into the back risk assessment: if in the case where step 4 identifies that driver is not concerned with front road,
The front vehicle of ESR millimetre-wave radar measurement with less than 80m, and the numerical value of TTC subtracts less than 5 seconds, and persistently from a distance from vehicle
Small, microprocessor will confirm that driver is in and divert one's attention driving condition at this time, and from vehicle knock into the back front truck risk it is higher.
Wherein, TTC is collision time, i.e., the time of front truck can be collided from vehicle；Δ s be front truck with from vehicle
Relative distance, Δ v is front truck and the relative velocity from vehicle.
Step 6, voice alarm: diverting one's attention driving condition if microprocessor judges that driver is in, and knocks into the back front truck from vehicle
The higher situation of risk under, phonetic alarm device will issue alarm signal at this time, remind driver attentively to drive, avoid knocking into the back
The generation of accident.
Provided driver for identification of the invention whether divert one's attention drive sunglasses and method can effectively solve Dai Mo
The case where mirror driver distraction drives, prevents the generation of rear-end collision, front truck anti-collision warning is not configured for vehicle in the present invention
Vehicle and driver have good effect in the case where wearing sunglasses.The present invention is driven using 6 axis accelerometers as identification
The person of sailing whether the main sensors of fixating straight ahead road, stability is high and less energy-consuming.And sunglasses of the invention can carry out wirelessly
Charging, no replacement is required battery are easy to use.In addition, present invention combination GPS sensor, so that system not work at low speeds
Make, the system is avoided to bring unnecessary bother to driver.The configuration of the present invention is simple, reliable operation, intelligence degree are higher,
It is suitble to be widely popularized.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
- The sunglasses driven 1. whether a kind of driver for identification diverts one's attention, which is characterized in that including sunglasses subsystem and vehicle-mounted son System,The sunglasses subsystem includes sunglasses main body, 6 axis accelerometers (1), bluetooth module A (3), battery module (4) and wireless Charging unit A (2), in which:6 axis accelerometer (1) is embedded in the bridge of the nose bridge of the sunglasses main body, for acquiring the head movement letter of driver Breath；The bluetooth module A (3) is embedded in the pile crown of the sunglasses main body, and the bluetooth module A (3) and 6 axis accelerate Degree meter (1) bluetooth connection, for receiving and sending the data information of 6 axis accelerometer (1) acquisition；The battery module (4) is in elongated strip, is embedded in the temple of the sunglasses main body, the battery module (4) and indigo plant Tooth modules A (3), 6 axis accelerometers (1) are electrically connected, and are responsible for providing power supply to entire sunglasses subsystem；The wireless charging device A (2) is embedded in the frame of the sunglasses main body, is used to charge to the battery module (4)；The onboard subsystem includes sunglasses holder device (5), bluetooth module B (8), GPS module (9), ESR millimetre-wave radar (11), wireless charging device B (6), microprocessor (7) and phonetic alarm device (10)；The sunglasses holder device (5), bluetooth Module B (8), GPS module (9), wireless charging device B (6), microprocessor (7) and phonetic alarm device (10) are all positioned in instrument Inside dial plate at the free time, the ESR millimetre-wave radar (11) is mounted in the front end bumper of vehicle two for acquiring front vehicles Opposite relative distance and relative velocity from vehicle；Wherein:The sunglasses holder device (5) is in quadrangular frustum pyramid shaped, and the two sides of top surface are symmetrically arranged with two for placing sunglasses main body thereon The hole of temple, the bluetooth module B (8), GPS module (9), wireless charging device B (6) and microprocessor (7) are arranged at institute It is internal to state sunglasses holder device (5), the phonetic alarm device (10) is arranged in the upper top surface of the sunglasses holder device (5), The bluetooth module B (8), GPS module (9), ESR millimetre-wave radar (11) and phonetic alarm device (10) respectively with micro- place Device (7) are managed to be electrically connected by conducting wire；When sunglasses main body is placed on the sunglasses holder device (5), the wireless charging device B (6) gives the wireless charging Device A (2) charging；The bluetooth module B (8) sends out received data for receiving data transmitted by the bluetooth module A (3) Give microprocessor (7)；The GPS module (9) is responsible for the velocity information of acquisition vehicle, and velocity information collected is sent to microprocessor (7)；The data that the microprocessor (7) is responsible for processing 6 axis accelerometers (1) and GPS module (9) is sent, judge driver It whether is to divert one's attention to drive, and control phonetic alarm device (10) and carry out voice prompting.
- The sunglasses driven 2. whether driver for identification according to claim 1 diverts one's attention, which is characterized in that 6 axis Accelerometer (1) is gyroscope+acceleration transducer, 6 axis of model MPU-6500 of 6 axis accelerometer (1).
- The sunglasses driven 3. whether driver for identification according to claim 1 diverts one's attention, which is characterized in that the bluetooth Modules A (3) and bluetooth module B (8) are 4.0 chip of AR3002 bluetooth.
- The sunglasses driven 4. whether driver for identification according to claim 1 diverts one's attention, which is characterized in that the GPS Module (9) is GSD4e GPS chip.
- The sunglasses driven 5. whether driver for identification according to claim 1 diverts one's attention, which is characterized in that micro- place Managing device (7) is ARM9 processor, concrete model S3C2410.
- The sunglasses driven 6. whether driver for identification according to claim 1 diverts one's attention, which is characterized in that the voice Warning device (10) is PM5020 speech chip.
- The sunglasses driven 7. whether driver for identification according to claim 1 diverts one's attention, which is characterized in that the battery Module (4) is 501235 polymer batteries；The wireless charging device A (2) and wireless charging device B (6) are respectively XKT- The receiving end of 412A wireless power supply module and transmitting terminal.
- 8. a kind of method that whether identification driver diverts one's attention to drive under sunglasses based on wearing, which comprises the following steps:Step 1, judge whether driver wears the sunglasses that driver distraction drives for identification: first to described in driver's wearing 6 parameters of driver head's movement that 6 axis accelerometers acquire in the case of sunglasses are demarcated, and 6 parameters include 3 3 acceleration values and 3 magnitude of angular velocities in orthogonal directions, specifically: driver is in the case where wearing the sunglasses In different kinds of roads condition downward driving, the distribution character and distribution of 6 parameters of 6 axis accelerometer of microprocessor records, and Determine the range V of calibrationMark；Microprocessor continuously records the data V of 6 parameters of one minute 6 axis accelerometerIt surveysIf 6 parameters In the range of demarcating before, i.e. VIt surveys≤VMark, then judge that driver has worn the sunglasses；Otherwise driver does not wear The sunglasses；Step 2, the non-driving condition head portion of diverting one's attention of driver horizontally rotates angle calibration: driver wears the sunglasses and level Left-hand mirror is normally watched to the range between right rear view mirror in rotation head, and it is collected to record gyroscope in 6 axis accelerometers Horizontally rotate the data area of angle, and demarcating this data area is the data area under non-driving condition of diverting one's attention；Step 3, judge whether to divert one's attention to judge by GPS speed: when GPS speed be less than 40km/h, microprocessor without Divert one's attention to judge；When GPS speed is greater than 40km/h, microprocessor starts to acquire 6 axis accelerometers and the measurement of ESR millimetre-wave radar Data, and carry out diverting one's attention to judge；Step 4, driver distraction's state recognition: using 3 seconds as the period is judged, microprocessor analyzes 6 axis accelerometers in real time Data distribution characteristic shows to drive if the measurement data of gyroscope exceeds the range that step 2 is demarcated in 6 axis accelerometers Member is not concerned with front road at this time；Step 5, it knocks into the back risk assessment: if in the case where step 4 identifies that driver is not concerned with front road, ESR The front vehicle of millimetre-wave radar measurement be less than 80m from a distance from vehicle, and the numerical value of TTC is less than 5 seconds, and lasting reduction, Microprocessor will confirm that driver is in and divert one's attention driving condition at this time, and from vehicle knock into the back front truck risk it is higher；Step 6, voice alarm: diverting one's attention driving condition if microprocessor judges that driver is in, and knocks into the back the wind of front truck from vehicle In the higher situation in danger, phonetic alarm device will issue alarm signal at this time, remind driver attentively to drive, avoid rear-end collision Generation.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111317469A (en) * | 2020-01-10 | 2020-06-23 | 深圳市宏智力科技有限公司 | Brain wave monitoring equipment, system and monitoring method |
| CN111317469B (en) * | 2020-01-10 | 2022-12-02 | 深圳市宏智力科技有限公司 | Brain wave monitoring equipment, system and monitoring method |
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