CN205541297U - Driver fatigue early warning system and device - Google Patents
Driver fatigue early warning system and device Download PDFInfo
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- CN205541297U CN205541297U CN201620283317.5U CN201620283317U CN205541297U CN 205541297 U CN205541297 U CN 205541297U CN 201620283317 U CN201620283317 U CN 201620283317U CN 205541297 U CN205541297 U CN 205541297U
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Abstract
The utility model provides a driver fatigue early warning system, includes sensing module, control module and reminds the module. The sensing module is used for sensing user's physiological parameters and the sensing signal that output corresponds. Control module is used for receiving the sensing signal of sensing module output saves and judges according to the sensing signal who receives whether user's physiological parameters is in normal range. Remind the module to be used for the basis control module's judgement is reminded the user to avoid the traffic accident that driver fatigue arouses. The utility model discloses still relate to a driver fatigue early warning device.
Description
Technical field
This utility model relates to a kind of driver fatigue monitor system, particularly relates to a kind of device sensing fatigue driving and carrying out early warning.
Background technology
It is known that the sensation that fatigue driving makes driver reduces, thinking judges blunt, and reaction is slow, easily causes the generation of vehicle accident.At present, the vehicle accident that fatigue driving is caused has occupied the biggest ratio in whole vehicle accidents.Therefore, it is judged that whether driver is in fatigue driving state, the operation that and carries out the driver being under fatigue driving state reporting to the police is necessary.
The fatigue state monitoring of existing driver is all based on greatly judging simple action index, although can reach certain precision under qualifications, but under the environment that actual complex is changeable, its accuracy and reliability are difficult to reach expection requirement.
Utility model content
In view of this, it is necessary to driver fatigue monitor system and the device of a kind of accuracy of judgement are provided, accurately judge whether driver is in fatigue state and such as sleepy or sleep and reminds in time.
A kind of driver fatigue monitor system, including:
Sensing module, the sensing signal of correspondence is moved and exports in the heart beating or body for sensing user；Described sensing module includes that one for sensing the piezoelectric type sensor of pressure, described piezoelectric type sensor is piezoelectric cable sensor or piezoelectric film sensor；
Control module, carries out storing and judging whether the palmic rate of user or heart beating crest parameter are in normal range according to the sensing signal received for receiving the sensing signal of described sensing module output；When the palmic rate of user or heart beating crest parameter are beyond normal range, export an alarm signal；And
Warning module, is used for receiving described alarm signal and reminding user.
It is also preferred that the left described piezoelectric type sensor also includes a screen unit, for shielding the noise signal of described piezoelectric cable sensor sensing；Being integrated with a temperature compensation unit in described piezoelectric cable sensor, described temperature compensation unit is for carrying out temperature-compensating to described piezoelectric cable sensor.
It is also preferred that the left described piezoelectric type sensor includes a lamination conductive film and is located at two conductive layers of described lamination conductive film both sides, described piezoelectric membrane is made up of Kynoar or Organic Iron electric material P (VDF-TrFE) macromolecule membrane.
It is also preferred that the left described piezoelectric type sensor is set to have an opening and be substantially round in shape or U-shaped, when described piezoelectric cable sensor is U-shaped, its U-shaped opening is non-to be arranged towards user heart direction.
Preferably, described control module is a microcontroller, described microcontroller includes a memory element, described memory element storage has a warning algorithm, described microcontroller receives after the sensing signal of described sensing module, judge whether the palmic rate of user or heart beating crest parameter are in normal range according to the warning algorithm in described memory element, described control module correspondence show that the state of user is waking state or doze state, and exporting corresponding alarm signal, described memory element is additionally operable to store the sensing signal from described sensing module；When user heartbeat waveform peak value the sample time set peak value in section with the difference ratio of average peak in this time period during higher than first preset value, described microcontroller judges to show that user is in waking state；With the difference of average peak than less than described first preset value and continue for some time in the heart beating peak value of user is in sample time section, described controller judges that user is in doze state.
Preferably, described driver fatigue monitor system also includes a communication module, described communication module is connected between described control module and described warning module, and for providing the transmission of data, described communication module uses wireless transmission method or wire transmission mode to carry out data transmission.
Preferably, described warning module includes mobile phone terminal, it is mutual that described mobile phone terminal carries out information by transmission means wirelessly or non-wirelessly and described control module, described mobile phone terminal is for showing heart beating or the body movement information of user, and according to the difference of the alarm signal received, start different alarm mechanisms.
It is also preferred that the left described driver fatigue monitor system also includes a supply module, described supply module is for powering for described driver fatigue monitor system, and described supply module is a battery or USB interface.
A kind of fatigue driving early-warning device, including driver fatigue monitor system and back of chair, wherein, described driver fatigue monitor system is positioned on described back of chair or is packaged in described back of chair, and described back of chair is installed on an automobile driver seat.
A kind of fatigue driving early-warning device, including driver fatigue monitor system and seat belt, wherein, described driver fatigue monitor system is arranged on described seat belt, described seat belt is arranged on an automobile driver seat, when driver uses described seat belt, the Body contact of described driver fatigue monitor system and described driver is to sense heart beating or the body movement information of described driver.
The biological information of the user that this utility model driver fatigue monitor system senses according to described sensing module, described control module judges the state of user and passes to described warning module, and then described warning module reminds user, in time with the vehicle accident avoiding fatigue driving to cause.Meanwhile, this utility model driver fatigue monitor system is low in energy consumption, easy to use, and reminds user in user entrance hypnagogic state starts the short time, accurate and timely, thus is prevented effectively from the vehicle accident that fatigue driving causes.
Accompanying drawing explanation
Fig. 1 is the block diagram of the better embodiment of this utility model driver fatigue monitor system；
Fig. 2 is the block diagram of sensing module in Fig. 1；
Fig. 3 is the block diagram of control module in Fig. 1；
Fig. 4 is the schematic diagram of the better embodiment of this utility model fatigue driving early-warning device；
Fig. 5 is the rearview of fatigue driving early-warning device in Fig. 4；
Fig. 6 be in Fig. 5 fatigue driving early-warning device along the sectional view of II-II line；
Fig. 7 is sensing module and the structural representation of control module of fatigue driving early-warning device in Fig. 4；
Fig. 8 is the applied environment schematic diagram of this utility model fatigue driving early-warning device.
Detailed description of the invention
Refer to Fig. 1, the better embodiment of this utility model driver fatigue monitor system 100 includes sensing module 10, control module 30, communication module 50 and a warning module 70.Described sensing module 10 moves parameter for the life entity sensing user and exports the sensing signal of correspondence；Described control module 30 carries out storing and judging that the life entity of user moves whether parameter is in normal range according to the sensing signal received for the sensing signal receiving the output of described sensing module 10；Described communication module 50 is for providing the transmission of data；Described warning module 70 is used for the judgement according to described control module 30 to remind user.
Described sensing module 10 includes a piezoelectric type sensor.In present embodiment, described sensing module 10 includes a piezoelectric cable sensor 12, and in other embodiments, the sensor of described sensing module 10 is piezoelectric film sensor., described piezoelectric cable sensor 12 uses the principle of inverse piezoelectric effect, to gather the signals such as the heart beating of user, human motion (body moves), blood circulation.Concrete, piezoelectric cable sensor 12 includes a lamination conductive film and is located at two conductive layers of described piezoelectric membrane both sides, and described piezoelectric membrane is made up of macromolecule membranes such as Kynoar (PVDF) or Organic Irons electric material P (VDF-TrFE).When described piezoelectric cable sensor 12 is changed by extraneous pressure, corresponding electric charge can be produced on the two-layer piezoelectric membrane of described piezoelectric cable sensor 12, thus form voltage at the two poles of the earth of described piezoelectric cable sensor 12.Now, described piezoelectric cable sensor 12 can produce signal intensity as an active capacitor, the change of extraneous input impedance.Owing to the sense film of described piezoelectric cable sensor 12 is the thinnest, the electric capacity that described piezoelectric cable sensor 12 is provided can meet the LF-response under the load of standard 1M.In present embodiment, described piezoelectric cable sensor 12 coordinates with amplifying circuit, filter circuit etc. and senses, can be by LF-response expanded range to required scope, therefore, described sensing module 10 can apply to minimum device and the signal of low-frequency vibration grade, in order to it is carried out data acquisition and analysis.It addition, be also integrated with a temperature compensation unit 121 in described piezoelectric cable sensor 12, described temperature compensation unit 121 is for carrying out temperature-compensating to described piezoelectric cable sensor 12, to improve the accuracy of the sensing signal of described piezoelectric cable sensor 12.
In present embodiment, described piezoelectric cable sensor 12 be a model be YCZL213R miniature piezoelectric cable sensor, its thickness is 3 millimeters.
In other embodiments, described sensing module 10 can also include a screen unit 14, and described screen unit 14 is for shielding the noise signal of described piezoelectric cable sensor 12 sensing.Thus when the vibration signal that human body produces is sensed by described piezoelectric cable sensor 12 so that sensing signal is the most accurate, sensitive.
It should be noted that in present embodiment, the sensing mode of described sensing module 10 is passive type sensing, and it passively receives, and body of user is dynamic, heartbeat waveform, blood circulation etc. and then generate corresponding sensing signal.Concrete, when described sensing module 10 is changed by extraneous pressure, say, that, when described sensing module 10 is exerted oneself by user, described sensing module 10 is started working, and when described sensing module 10 is stopped firmly by user, described sensing module 10 quits work.Therefore, in present embodiment, described sensing module 10 is low in energy consumption, can save electric energy.In other embodiments, it would however also be possible to employ active piezoelectric cable sensor 12 senses.It should be noted that, owing to piezoelectric cable sensor 12 described in present embodiment is highly sensitive sensor, therefore, when user touches described sensing module 10, owing to the heart beating etc. of user changes, described sensing module 10 can sense the change of pressure.
In present embodiment, described control module 30 is a microcontroller 32, described microcontroller 32 includes a memory element 321, described microcontroller 32 connects described sensing module 10 and from the sensing signal of described sensing module 10 and is stored in described memory element 321, such as heartbeat waveform, blood circulation information or signal etc. with reception.Described memory element 321 also stores a warning algorithm, described microcontroller 32 receives after the sensing signal of described sensing module 10, judge according to the warning algorithm in described memory element 321 whether the relevant parameter of user is in normal range, as, the information such as the heartbeat waveform (such as heart rate or heartbeat amplitude) according to user, blood circulation, body are dynamic or signal judge that user is in waking state, doze state or shallow state etc. of sleeping, and export the alarm signal of correspondence.
Described communication module 50 connects between described control module 30 and described warning module 70, for providing the transmission of data.Described communication module 50 can use wireless transmission method, for example with bluetooth module, it would however also be possible to employ wire transmission mode, connects for example with USB interface line to transmit signal.It is also preferred that the left in present embodiment, described communication module 50 uses bluetooth module to communicate.Wherein, described bluetooth module has two data input pins, and said two data input pin is respectively adopted both-end balanced input so that its anti-interference is preferable.
Described warning module 70 is used for the judgement according to described control module 30 to remind user.Described warning module 70 can be a display unit, and such as OLED dot matrix display screen, the data that display test in real time is arrived, described display unit can receive the alarm signal of described control module 30 to carry out display alarm by wire transmission mode or wireless transmission method.Meanwhile, described display unit can also show the information such as the heartbeat waveform of described user, blood circulation, body move.In other embodiments, described warning module 70 can be a buzzer, and described buzzer sends frequency is different or length is different buzzerphone to remind user according to the difference of the alarm signal received.It is understood that described display unit can be the navigator display of vehicle, described buzzer can be the speech prompting device of automobile navigation.
Additionally, described warning module 70 can also be the mobile phone terminal of user, it is mutual that described mobile phone terminal can carry out information by transmission means wirelessly or non-wirelessly and described control module 30, described mobile phone terminal is for showing the information such as the heartbeat waveform of described user, blood circulation, body move, and meanwhile, described mobile phone terminal is according to the difference of the alarm signal received, start different alarm mechanisms, as, luminous, sounding or display etc., to remind user.It addition, mobile phone terminal can also record the data messages such as the heartbeat waveform of user, blood circulation, and convert the data into that user can be easily understood cross word or graphic model shows intuitively.It addition, user can also freely inquire about conventional data record, meanwhile, user can also be derived the historical data information of mobile phone terminal record and be handed over to doctor and carry out data refer.It is understandable that, the above-mentioned functions of user mobile phone terminal can be realized by an application program on mobile phone, when user uses mobile phone terminal open above-mentioned application program, by the connected mode such as USB interface or bluetooth to carry out information mutual with described driver fatigue monitor system 100.
Described driver fatigue monitor system 100 also includes a supply module 90, and described supply module 90 is for powering for described driver fatigue monitor system 100.Concrete, described supply module 90 connects described sensing module 10 and described control module 30 thinks that it is powered.Described supply module 90 includes that a battery is that described driver fatigue monitor system 100 is powered, it is also possible to including that USB interface line connects automobile USB interface is that described driver fatigue monitor system 100 is powered.It is also preferred that the left owing to the power consumption of sensing module 10 described in present embodiment and described control module 30 is the lowest, battery therefore can be used to power so that described driver fatigue monitor system 100 simple in construction, convenient use.
In present embodiment, biological information or the signals such as the heart beating of user that described driver fatigue monitor system 100 senses according to described sensing module 10, blood circulation, body are dynamic, described control module 30 judges the condition of user and then passes to described warning module 70 by communication module 50, and described warning module 70 is to remind user in time.In other embodiments, described fatigue driving prewarning unit 100 can also output data to a background control center, by modes such as mobile phone terminal transmission information, allows backstage remind alternately with user in real time, controls, to eliminate the fatigue of user.
In other embodiments, described driver fatigue monitor system 100 can also connect the speed control unit of described vehicle, controls vehicle deceleration or stopping with the state according to user.
Refer to Fig. 4 to Fig. 7, this utility model fatigue driving early-warning device 300 includes a body 200 and the driver fatigue monitor system 100 being arranged on described body.In present embodiment, described body 200 is a back of chair being installed on automobile driver seat, as shown in Figure 6, driver fatigue monitor system 100 described in present embodiment is encapsulated in back of chair, in other embodiments, described driver fatigue monitor system 100 can also be placed directly on described back of chair.When driver contacts described back of chair the described driver fatigue monitor system of corresponding unlatching, and then described driver fatigue monitor system 100 by the information such as the sensing heart beating of driver of described back of chair, blood circulation, body move or signal and processes and reminds.
Concrete, in present embodiment, sensing module 10 and the described control module 30 of described driver fatigue monitor system 100 are arranged on described body 200, transmitter unit and supply module 90 in described bluetooth module are arranged at (not shown) on described body 200, reception unit in described bluetooth module is connected with described warning module 70, it is arranged in the lump in automobile, in the device such as auto navigation as above, drive recorder, mobile phone terminal.
Wherein, as it is shown in fig. 7, for improving sensing sensitivity and precision, the piezoelectric cable sensor 12 of described sensing module 10 is in a U-shaped setting, as other embodiment, described piezoelectric cable sensor 12 is set to have an opening and be substantially round in shape shape.When driver enters driver's seat and reclines to described back of chair, described piezoelectric cable sensor 12 constantly senses the heartbeat message of driver or signal and exports to described control module 30.Wherein, described heartbeat message includes waveform peak and the frequency change of heart beating.When described piezoelectric cable sensor is set to U-shaped, its U-shaped opening is non-to be arranged towards driver's heart direction, to increase the sensing range of piezoelectric cable sensor and to improve anti-interference.
The microcontroller 32 of described control module 30 receives the heartbeat message of described driver, and calculates the state of driver according to warning algorithm.For example, the state of general human body is divided into the states such as clear-headed, sleepy, sleep, when driver heartbeat waveform peak value the sample time set peak value in section with the difference ratio of average peak in this time period during higher than first preset value, described microcontroller 32 judges to show that driver is in the waking state being suitable for driving, and the first preset value can be a numerical value between 5%-10%；With the difference of average peak in this time period than less than described first preset value (such as 5%) and continue for some time in the heart beating peak value of driver is in sample time section, such as 10 seconds, described controller 32 judges that driver is in doze state, described controller 32 exports one first early warning signal transmitter unit to described bluetooth module, the transmitter unit of described bluetooth module sends described first early warning signal, the reception unit of described bluetooth module receives described first early warning signal, and then described warning module 70 carries out sleepy prompting to driver, the sound sending frequency relatively low such as buzzer is reminded.With the difference of average peak ratio less than one second preset value (described second preset value is less than described first preset value) and continue for some time in the heart beating peak value of driver is in sample time section, such as 5 seconds or 10 seconds, or when the heart rate of driver is less than three preset value, described controller 32 judges that driver is in sleep state, described controller 32 exports one second early warning signal transmitter unit to described bluetooth module, same, the transmitter unit of described bluetooth module sends described second early warning signal, the reception unit of described bluetooth module receives described second early warning signal, and then described warning module 70 carries out sleep and reminds driver, the sound sending frequency higher such as buzzer is reminded.It is understood that the 3rd preset value can arrange different heart rate value as the benchmark judging to enter sleep according to individual or medical statistics；User can also be arranged as required to have different alerting patterns under different conditions.
Above-mentioned fatigue driving early-warning device 300 can enter in hypnagogic state starts the short time driver and remind driver, accurate and timely, can be prevented effectively from the vehicle accident that fatigue driving causes.
Meanwhile, when the warning module 70 in above-mentioned fatigue driving early-warning device 300 is a display unit, such as auto navigation or mobile phone terminal, described display unit can also show the heartbeat message of user, driving time etc. in real time.
When user is in abnormal condition, as fall asleep, knock sleep even sleep state time, mobile phone terminal can also be according to the location information of cellphone GPS, the status information of transmission user and location information are to Background control person, such as household so that Background control person and user interact prompting, control, to ensure driving safety, eliminate the fatigue of user, it is to avoid dangerous generation.
Simultaneously, described driver fatigue monitor system 100 can also judge the health status of user according to the heart rate information of user, when in the heart rate short time of user too high or too low time, while mobile phone terminal sends that information to Background control person, speed control unit can also being started, controlling vehicle deceleration until stopping.
Owing to this utility model driver fatigue monitor system 100 constantly records the body parameter information of user, such as information such as the heartbeat waveform in 5 years, blood circulations, thus obtain the big data of user health status, and then the health variable condition of user can be drawn according to big data message.It is understood that this utility model driver fatigue monitor system 100 could be arranged to select different users when opening, same, described memory element 321 can store the body parameter information of different users.
Further, since this utility model driver fatigue monitor system 100 is for according to extraneous pressure change and then prompting user, therefore, described driver fatigue monitor system 100 is also used as collision safety switch and uses.Concrete, when the moment of vehicle collision, the piezoelectric cable sensor 12 of described driver fatigue monitor system 100 senses bigger pressure and then starts safety measure, such as devices such as air bags.
It is understood that this utility model fatigue driving early-warning device 300 is not limited to above-mentioned occupation mode.In other embodiments, described body 200 is seat belt, described driver fatigue monitor system 100 is arranged on described seat belt, described seat belt is arranged on an automobile driver seat, when driver uses described seat belt, the Body contact of described driver fatigue monitor system 100 and described driver is to sense the body parameter of described driver.It is understood that described body 200 is not limited to above two, as long as described driver fatigue monitor system 300 is so that described sensing module 10 senses human heartbeat.
Please also refer to Fig. 8, Fig. 8 is the applied environment schematic diagram of this utility model fatigue driving early-warning device 300, this utility model fatigue driving early-warning device 300 is in addition to can reminding driver 310 when driver 310 is tired, it can also pass through a terminal unit, such as mobile phone 330, agreement by agreement, hospital 340, the Background control person 350 of background control center, vehicle 360 grade couples together with the Internet, jointly carry out information exchange and communication, form an Internet of Things, to realize intellectuality sensing, location, follow the tracks of, monitoring and management, thus facilitate user to collect information, carry out information management and control.Concrete, when driver 310 is in abnormal condition, as fall asleep, knock sleep even sleep state time, mobile phone 330 can send the status information of driver 310 and location information to Background control person 350, speed control unit can also be started, control vehicle 360 and slow down until stopping, the body parameter information of the user constantly recorded can also be sent to hospital 340 by described mobile phone 330, so that the Internet of Things that user can utilize described fatigue driving early-warning device 300 to build is collected information and is managed and controls.
It is understandable that, when described early warning sensing device 300 is respectively arranged in some vehicles 360, described some vehicles 360 and a control centre can equally constitute a car networking (not shown) by the terminal unit in GPS and this utility model fatigue driving early-warning device 300.Concrete, the information such as the body parameter of position, speed, route, vehicle condition and the driver of some vehicles 360, can be mutual with the information of described control centre by GPS or terminal unit, facilitate user to collect information, carry out information management and the control (such as unblank car door, route planning, vehicle deceleration etc.) to some vehicles 360.
The biological information of the user that this utility model driver fatigue monitor system 100 senses according to described sensing module 10, described control module 30 judges the state of user and then passes to described warning module 70 by communication module 50, described warning module 70 is to remind user in time, with the vehicle accident avoiding fatigue driving to cause.
Claims (10)
1. a driver fatigue monitor system, it is characterised in that described driver fatigue monitor system includes: sensing module, the sensing signal of correspondence is moved and exports in the heart beating or body for sensing user；Described sensing module includes that one for sensing the piezoelectric type sensor of pressure, described piezoelectric type sensor is piezoelectric cable sensor or piezoelectric film sensor；
Control module, carries out storing and judging whether the palmic rate of user or heart beating crest parameter are in normal range according to the sensing signal received for receiving the sensing signal of described sensing module output；When the palmic rate of user or heart beating crest parameter are beyond normal range, export an alarm signal；And warning module, it is used for receiving described alarm signal and user being reminded.
2. driver fatigue monitor system as claimed in claim 1, it is characterised in that described piezoelectric type sensor also includes a screen unit, for shielding the noise signal of described piezoelectric cable sensor sensing；Being integrated with a temperature compensation unit in described piezoelectric cable sensor, described temperature compensation unit is for carrying out temperature-compensating to described piezoelectric cable sensor.
3. driver fatigue monitor system as claimed in claim 1, it is characterized in that, described piezoelectric type sensor includes a lamination conductive film and is located at two conductive layers of described lamination conductive film both sides, and described piezoelectric membrane is made up of Kynoar or Organic Iron electric material P (VDF-TrFE) macromolecule membrane.
4. driver fatigue monitor system as claimed in claim 1, it is characterised in that described piezoelectric type sensor is set to have an opening and be substantially round in shape or U-shaped, and when described piezoelectric cable sensor is U-shaped, its U-shaped opening is non-to be arranged towards user heart direction.
5. driver fatigue monitor system as claimed in claim 1, it is characterized in that, described control module is a microcontroller, described microcontroller includes a memory element, described memory element storage has a warning algorithm, described microcontroller receives after the sensing signal of described sensing module, judge whether the palmic rate of user or heart beating crest parameter are in normal range according to the warning algorithm in described memory element, described control module correspondence show that the state of user is waking state or doze state, and export the alarm signal of correspondence, described memory element is additionally operable to store the sensing signal from described sensing module；When user heartbeat waveform peak value the sample time set peak value in section with the difference ratio of average peak in this time period during higher than first preset value, described microcontroller judges to show that user is in waking state；With the difference of average peak than less than described first preset value and continue for some time in the heart beating peak value of user is in sample time section, described controller judges that user is in doze state.
6. driver fatigue monitor system as claimed in claim 1, it is characterized in that, described driver fatigue monitor system also includes a communication module, described communication module is connected between described control module and described warning module, for providing the transmission of data, described communication module uses wireless transmission method or wire transmission mode to carry out data transmission.
7. driver fatigue monitor system as claimed in claim 1, it is characterized in that, described warning module includes mobile phone terminal, it is mutual that described mobile phone terminal carries out information by transmission means wirelessly or non-wirelessly and described control module, described mobile phone terminal is for showing heart beating or the body movement information of user, and according to the difference of the alarm signal received, start different alarm mechanisms.
8. driver fatigue monitor system as claimed in claim 1, it is characterised in that described driver fatigue monitor system also includes a supply module, and described supply module is for powering for described driver fatigue monitor system, and described supply module is a battery or USB interface.
9. a fatigue driving early-warning device, including the driver fatigue monitor system as described in any one in claim 1-8 and back of chair, it is characterized in that, described driver fatigue monitor system is positioned on described back of chair or is packaged in described back of chair, and described back of chair is installed on an automobile driver seat.
10. a fatigue driving early-warning device, including the driver fatigue monitor system as described in any one in claim 1-8 and seat belt, it is characterized in that, described driver fatigue monitor system is arranged on described seat belt, described seat belt is arranged on an automobile driver seat, when driver uses described seat belt, the Body contact of described driver fatigue monitor system and described driver is to sense heart beating or the body movement information of described driver.
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| CN201620283317.5U CN205541297U (en) | 2016-04-07 | 2016-04-07 | Driver fatigue early warning system and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654675A (en) * | 2016-04-07 | 2016-06-08 | 深圳市云传智联技术有限公司 | Early warning system and device for driver fatigue |
| CN110476194A (en) * | 2017-03-28 | 2019-11-19 | 国立大学法人九州工业大学 | Driver status detection device |
-
2016
- 2016-04-07 CN CN201620283317.5U patent/CN205541297U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105654675A (en) * | 2016-04-07 | 2016-06-08 | 深圳市云传智联技术有限公司 | Early warning system and device for driver fatigue |
| CN110476194A (en) * | 2017-03-28 | 2019-11-19 | 国立大学法人九州工业大学 | Driver status detection device |
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