CN109620197A - A kind of fatigue driving warning system and method based on monitoring of pulse and self study - Google Patents
A kind of fatigue driving warning system and method based on monitoring of pulse and self study Download PDFInfo
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- CN109620197A CN109620197A CN201910060132.6A CN201910060132A CN109620197A CN 109620197 A CN109620197 A CN 109620197A CN 201910060132 A CN201910060132 A CN 201910060132A CN 109620197 A CN109620197 A CN 109620197A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
- A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
- A61B5/18—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state for vehicle drivers or machine operators
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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Abstract
The present invention discloses a kind of fatigue driving alarming method for power based on monitoring of pulse and self study, comprising the following steps: 1) detects speed by on-vehicle host, judge whether vehicle is in driving status, and will judge that signal is transferred to bracelet；2) it when vehicle is in driving status, acquires human pulse frequency in real time by bracelet, if the human pulse frequency of detection is lower than normal pulse frequency, assert that driver is in a state of fatigue；3) driver is vibrated by bracelet, and will assert that signal is transferred to on-vehicle host, on-vehicle host carries out sound-light alarm prompt；4) after driver closes sound-light alarm key, driver has been waken up, and bracelet vibration stops.The present invention monitors pulse with the bracelet that driver wears, easy to install and use as the state foundation for judging whether that fatigue driving sleepy is felt, warns that high-efficient, effect is good.
Description
Technical field
The present invention relates to a kind of fatigue driving warning system and method based on monitoring of pulse and self study belong to vehicle peace
It is complete to drive field.
Background technique
Fatigue driving is to cause the major reason of traffic accident, and caused traffic death is also very more, asks to solve this
Topic, many engineers and technicians devise various schemes, and have carried out many trials, also achieve certain effect, but still not
It is enough perfect.
Judge whether driver is tired as monitored driver's eyes closed state using camera at present, thus carry out sound
Light warning.But driver's face-image is acquired by camera, and identify eyes and closed state, it is easy by ambient lighting
The influence of condition and driver's wearing spectacles causes correctly to identify and the case where false alarm.
In addition, using detection driver's both hands whether catch steering wheel as whether fatigue driving sleepy feel state according to
According to there are problems that rate of false alarm is high, sensor inconvenience installation.
Summary of the invention
It is driven in view of the above existing problems in the prior art, the present invention provides a kind of based on monitoring of pulse and the fatigue of self study
Warning system and method are sailed, has effectively evaded the method for video identification human eye folding condition, vulnerable to illumination condition and wearing spectacles
Etc. conditions limitation, improve warning efficiency and the quality to driver tired driving.
To achieve the goals above, what the present invention used is a kind of based on the fatigue driving of monitoring of pulse and self study warning system
System, including bracelet, on-vehicle host；
The bracelet includes MCU, monitoring of pulse module, display module and vibrating motor module, the monitoring of pulse module,
Display module and vibrating motor module are connect with MCU；
The on-vehicle host includes MCU, CAN communication module, vehicle startup state monitoring module, alarm module and by key-like
State monitoring modular, the CAN communication module, vehicle startup state monitoring module, alarm module and key-press status monitoring modular are equal
It is connect with MCU；
The bracelet is passed through by monitoring of pulse module monitors driver real-time body's pulse frequency, the on-vehicle host
CAN communication module, the monitoring of vehicle startup state monitoring module read vehicle speed, and are sent to bracelet；
When bracelet monitors the real-time pulse of human body lower than normal pulse frequency, and vehicle is in motion, the vibration in bracelet
The vibration of motor module starter motor, while monitoring information is transmitted to on-vehicle host by bracelet, the on-vehicle host passes through warning mould
Block alerting drivers, after key-press status monitoring modular detects that driver presses warning key, alarm module stops warning, institute
On-vehicle host feedback signal is stated to bracelet, vibrating motor module is controlled and stops vibration.
As an improvement, further including vibration monitoring module in the bracelet, the vibration monitoring module is used in non-driving shape
When state, detection human body is in active state or sleep state.
As an improvement, the monitoring of pulse module includes pulse frequency acquisition unit, heart rate range self study unit；
The heart rate range self study unit is used to monitor maximum heart rate Famax under driver activity state, most careful
Rate Famin, maximum heart rate Fsmax, minimum heart rate Fsmin under sleep state；
The pulse frequency acquisition unit is used to detect the Current heart rate F of driver；
F and Fsmax, Famin are compared by the MCU in bracelet, the MCU as Fsmax < F < Famin, in bracelet
Judge that human body is in tired sleepy and feels state.
As an improvement, carrying out the measurement of heart rate using photoplethysmographic graphical method PPG.
As an improvement, the alarm module includes alarm LED lamp unit and buzzer unit；The alarm LED lamp unit
With buzzer unit by being closed by key control.
As an improvement, being mounted on bluetooth communication in the bracelet, on-vehicle host, the bracelet and on-vehicle host are logical
It crosses bluetooth communication and carries out signal transmission.
As an improvement, being additionally provided with display module in the bracelet, display module is connect with the MCU in bracelet, the display
Module is for showing heart rate information, temporal information.
In addition, the present invention also provides a kind of fatigue driving alarming method for power based on monitoring of pulse and self study, including with
Lower step:
1) speed is detected by on-vehicle host, judges whether vehicle is in driving status, and will judge that signal is transferred to hand
Ring；
2) when vehicle is in driving status, human pulse frequency is acquired in real time by bracelet, if the human pulse of detection
When frequency is lower than normal pulse frequency, assert that driver is in a state of fatigue；
3) driver is vibrated by bracelet, and will assert that signal is transferred to on-vehicle host, on-vehicle host carries out sound-light alarm
Prompt；
4) after driver closes sound-light alarm key, driver has been waken up, and bracelet vibration stops.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention monitors pulse with the bracelet that driver wears, as the state for judging whether that fatigue driving sleepy is felt
Foundation, easy to install and use, warning is high-efficient, effect is good；Effectively evade in existing video identification, the folding condition of human eye
It is illuminated by the light the limitation of the conditions such as condition and wearing spectacles；It also avoids monitoring whether driver's both hands catch direction by sensor
The problem that when disk, rate of false alarm is high, sensor installation is inconvenient.
2) method that the present invention uses self study, automatically updates human body active state and sleep state under non-driving condition
Under heart rate range, effectively adapt to body variation caused by heart rate range fluctuate.
3) present invention alerting drivers in such a way that bracelet vibrates cooperation on-vehicle host sound-light alarm, and only driving
Member stretches out one's hand press warning key in the case where just stop warning, the state wake-up that effectively driver can be felt from sleepy.
Detailed description of the invention
Fig. 1 is the workflow schematic diagram of bracelet in the present invention；
Fig. 2 is the flow diagram of bracelet heart rate range self study in the present invention；
Fig. 3 is the hardware composed structure schematic diagram one of bracelet in the present invention；
Fig. 4 is the hardware composed structure schematic diagram two of bracelet in the present invention.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention is carried out below further detailed
It describes in detail bright.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, it is not limited to this hair
Bright range.
Unless otherwise defined, all technical terms and scientific terms used herein are led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical, and term as used herein in the specification of the present invention is intended merely to retouch
State the purpose of specific embodiment, it is not intended that in the limitation present invention.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of fatigue driving warning system based on monitoring of pulse and self study, packet
Include bracelet, on-vehicle host；
The bracelet includes MCU, monitoring of pulse module, display module and vibrating motor module, the monitoring of pulse module,
Display module and vibrating motor module are connect with MCU, and battery is also equipped in bracelet；
The on-vehicle host includes MCU, CAN communication module, vehicle startup state monitoring module, alarm module and by key-like
State monitoring modular, the CAN communication module, vehicle startup state monitoring module, alarm module and key-press status monitoring modular are equal
It is connect with MCU；
The bracelet is passed through by monitoring of pulse module monitors driver real-time body's pulse frequency, the on-vehicle host
CAN communication module, the monitoring of vehicle startup state monitoring module read vehicle speed, and are sent to bracelet；
When bracelet monitors the real-time pulse of human body lower than normal pulse frequency, and vehicle is in motion, the vibration in bracelet
The vibration of motor module starter motor, while monitoring information is transmitted to on-vehicle host by bracelet, the on-vehicle host passes through warning mould
Block alerting drivers, after key-press status monitoring modular detects that driver presses warning key, alarm module stops warning, institute
On-vehicle host feedback signal is stated to bracelet, vibrating motor module is controlled and stops vibration.
It further include vibration monitoring module in the bracelet as the improvement of embodiment, the vibration monitoring module is used for
When non-driving condition, detection human body is in active state or sleep state.
As the improvement of embodiment, the monitoring of pulse module includes pulse frequency acquisition unit, heart rate range self study
Unit；
The heart rate range self study unit is used to monitor maximum heart rate Famax under driver activity state, most careful
Rate Famin, maximum heart rate Fsmax, minimum heart rate Fsmin under sleep state；
The pulse frequency acquisition unit is used to detect the Current heart rate F of driver；
F and Fsmax, Famin are compared by the MCU in bracelet, the MCU as Fsmax < F < Famin, in bracelet
Judge that human body is in tired sleepy and feels state.
As the improvement of embodiment, the measurement of heart rate is carried out using photoplethysmographic graphical method PPG.
As the improvement of embodiment, the alarm module includes alarm LED lamp unit and buzzer unit；The alarm
LED lamp unit and buzzer unit by key control by being closed.
As the improvement of embodiment, bluetooth communication, the bracelet and vehicle are mounted in the bracelet, on-vehicle host
It carries host and signal transmission is carried out by bluetooth communication.
As the improvement of embodiment, display module is additionally provided in the bracelet, display module is connect with the MCU in bracelet,
The display module is for showing heart rate information, temporal information.
Embodiment 1
A kind of fatigue driving alarming method for power based on monitoring of pulse and self study, as shown in Figure 1, firstly, bracelet is adopted in real time
Collect human pulse frequency, after wearing the driver of bracelet close to vehicle and succeeding with on-vehicle host Bluetooth communication, on-vehicle host
Vehicle speed is read by CAN bus, and bracelet is sent to by bluetooth；
When bracelet discovery speed be greater than 0, i.e., vehicle in motion, and the human pulse monitored be lower than normal pulse frequency
When (normal pulse determination method is seen below), it is believed that driver is in a state of fatigue, then starts the vibrating motor of bracelet, simultaneously
By Bluetooth communication, tired information is sent to on-vehicle host, after on-vehicle host receives information, starts acousto-optic warning note, directly
Ability stop alarm is pressed the button to driver.
Wherein, the parameter being related to is body Current heart rate F, the heart rate range under body movement state: maximum heart rate
Famax, minimum heart rate Famin, the heart rate range under sleep state: maximum heart rate Fsmax, minimum heart rate Fsmin；
By the above parameter it may determine that the state whether driver currently feels in tired sleepy, i.e. Fsmax < F <
Famin。
In addition, the determination of Famax, Famin, Fsmax, Fsmin are carried out under the non-driving condition of driver, when bracelet not
It can be considered at non-driving condition by bluetooth connection on-vehicle host, under non-driving condition, bracelet passes through vibrating sensor
Detection is presently at active state or sleep state, and even vibrating sensor detects that acceleration is greater than 0 and continues 1 minute i.e.
It is in active state, acceleration continues 1 minute i.e. in sleep state for 0；
Bracelet is respectively in active state and sleep state acquisition body heart rate and as sample, and complete one day as statistics
Period, i.e., daily 9:00 in morning starts to acquire data, primary to sample process at the end of next day 8:59 mono- day, calculates
Famax, Famin, Fsmax, Fsmin, and store, whether this parameter can be called under driving condition current in tired to judge
Labor state, specific heart rate range self study process are shown in Fig. 2.
About the measurement of heart rate, the present invention uses photoplethysmographic graphical method PPG, and the method is very mature, no longer
It repeats.
The present invention monitors pulse with the bracelet that driver wears, as judge whether state that fatigue driving sleepy is felt according to
According to effectively having evaded in existing video identification, the folding condition of human eye is illuminated by the light the limitation of the conditions such as condition and wearing spectacles；
When also avoiding whether catching steering wheel by sensor monitoring driver's both hands, rate of false alarm is high, sensor installation is inconvenient is asked
Topic.
The method that the present invention uses self study, automatically updates under non-driving condition under human body active state and sleep state
Heart rate range, effectively adapt to body variation caused by heart rate range fluctuate.
Present invention alerting drivers in such a way that bracelet vibrates cooperation on-vehicle host sound-light alarm, and only in driver
It stretches out one's hand and just stops warning in the case where pressing warning key, the state that can effectively feel driver from sleepy wakes up.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. a kind of fatigue driving warning system based on monitoring of pulse and self study, which is characterized in that including bracelet, vehicle-mounted master
Machine；
The bracelet includes MCU, monitoring of pulse module, display module and vibrating motor module, the monitoring of pulse module, display
Module and vibrating motor module are connect with MCU；
The on-vehicle host includes MCU, CAN communication module, vehicle startup state monitoring module, alarm module and key-press status prison
Module is surveyed, the CAN communication module, vehicle startup state monitoring module, alarm module and key-press status monitoring modular are and MCU
Connection；
For the bracelet by monitoring of pulse module monitors driver real-time body's pulse frequency, the on-vehicle host is logical by CAN
Believe that module, the monitoring of vehicle startup state monitoring module read vehicle speed, and be sent to bracelet；
When bracelet monitors the real-time pulse of human body lower than normal pulse frequency, and vehicle is in motion, the vibrating motor in bracelet
The vibration of module starter motor, while monitoring information is transmitted to on-vehicle host by bracelet, the on-vehicle host is alert by alarm module
Show driver, after key-press status monitoring modular detects that driver presses warning key, alarm module stops warning, the vehicle
Host feedback signal is carried to bracelet, vibrating motor module is controlled and stops vibration.
2. a kind of fatigue driving warning system based on monitoring of pulse and self study according to claim 1, feature exist
In, further include vibration monitoring module in the bracelet, the vibration monitoring module be used in non-driving condition, detect human body at
In active state or sleep state.
3. a kind of fatigue driving warning system based on monitoring of pulse and self study according to claim 2, feature exist
In the monitoring of pulse module includes pulse frequency acquisition unit, heart rate range self study unit；
The heart rate range self study unit is for monitoring the maximum heart rate Famax under driver activity state, minimum heart rate
Famin, maximum heart rate Fsmax, minimum heart rate Fsmin under sleep state；
The pulse frequency acquisition unit is used to detect the Current heart rate F of driver；
F and Fsmax, Famin are compared by the MCU in bracelet, the MCU judgement as Fsmax < F < Famin, in bracelet
Human body is in tired sleepy and feels state.
4. a kind of fatigue driving warning system based on monitoring of pulse and self study according to claim 3, feature exist
In using the measurement of photoplethysmographic graphical method PPG progress heart rate.
5. a kind of fatigue driving warning system based on monitoring of pulse and self study according to claim 1, feature exist
In the alarm module includes alarm LED lamp unit and buzzer unit；The alarm LED lamp unit and buzzer unit are logical
It crosses and is closed by key control.
6. a kind of fatigue driving warning system based on monitoring of pulse and self study according to claim 1, feature exist
In being mounted on bluetooth communication in the bracelet, on-vehicle host, the bracelet and on-vehicle host pass through bluetooth communication
Carry out signal transmission.
7. a kind of fatigue driving warning system based on monitoring of pulse and self study according to claim 1, feature exist
In being additionally provided with display module in the bracelet, display module is connect with the MCU in bracelet, and the display module is for showing the heart
Rate information, temporal information.
8. a kind of fatigue driving alarming method for power based on monitoring of pulse and self study, which comprises the following steps:
1) speed is detected by on-vehicle host, judges whether vehicle is in driving status, and will judge that signal is transferred to bracelet；
2) when vehicle is in driving status, human pulse frequency is acquired in real time by bracelet, if the human pulse frequency of detection
When lower than normal pulse frequency, assert that driver is in a state of fatigue；
3) driver is vibrated by bracelet, and will assert that signal is transferred to on-vehicle host, on-vehicle host carries out sound-light alarm prompt；
4) after driver closes sound-light alarm key, driver has been waken up, and bracelet vibration stops.
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| CN201910060132.6A CN109620197A (en) | 2019-01-22 | 2019-01-22 | A kind of fatigue driving warning system and method based on monitoring of pulse and self study |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111016782A (en) * | 2019-12-10 | 2020-04-17 | 上海擎感智能科技有限公司 | Safe driving prompting system and method |
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Address after: 221000 east side of Keji Road, Xuzhou Economic and Technological Development Zone, Jiangsu Province Applicant after: JIANGSU XUGONG INFORMATION TECHNOLOGY Co.,Ltd. Address before: No. 6, Drum Tower District, Jiangsu Province, Xuzhou City, Jiangsu Applicant before: JIANGSU XUGONG INFORMATION TECHNOLOGY Co.,Ltd. |
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Application publication date: 20190416 |