CN102490701A - Safe driving monitoring device capable of monitoring physical and psychological states of driver - Google Patents
Safe driving monitoring device capable of monitoring physical and psychological states of driver Download PDFInfo
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- CN102490701A CN102490701A CN2011103959774A CN201110395977A CN102490701A CN 102490701 A CN102490701 A CN 102490701A CN 2011103959774 A CN2011103959774 A CN 2011103959774A CN 201110395977 A CN201110395977 A CN 201110395977A CN 102490701 A CN102490701 A CN 102490701A
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Abstract
A safe driving monitoring device capable of monitoring physical and psychological states of a driver belongs to the field of safe driving of automobiles and solves the problem that an existing safe driving device only detects some single index, does not consider changes of the physical and psychological states of the driver and cannot carry out corresponding reaction movements when the states of the driver change. A neck pulse sensor detects pulse signals, a pressure sensor detects signals indicating whether the driver sits in an automobile, an air bag pressure sensor detects hand gripping signals or foot power signals of the driver, a breathing signal detection circuit detects breathing signals of the driver, a non-contact temperature measuring sensor detects body-temperature signals, an alcohol concentration measuring sensor detects alcohol concentration signals, an ear type sphygmomanometer detects blood pressure signals, and a distance measuring sensor detects relative distance signals. All the signals are analyzed by a control and analysis processor, and the control and analysis processor outputs analysis results to an alarming module so as to give an alarm.
Description
Technical field
But the present invention relates to the safe driving control monitor unit of a kind of monitoring driving person health and condition in the mind, belong to the vehicle security drive field.
Background technology
Automobile is played a greater and greater role in society as modern transportation instrument and daily walking-replacing tool.But the puzzlement people's is exactly the frequently-occurring of traffic accident, so vehicle security drive has just become a very important problem.The patent that has at present had some to be directed against the vehicle security drive safety custody, the automotive safety control monitor unit described in these patents has the function of part safety detection, but does not but have the recognition function of condition and condition in the mind, and function is comprehensive inadequately.Such as; A patent is arranged; Its patent name be a kind of utilize sensor technology that the safety strap running condition is carried out the car belt warning device of comprehensive monitoring (patent No. is: ZL200920237063.3; The open date is: on June 9th, 2010), whether this device can only fasten one's safety belt to the people is detected, and other situation are not detected; Also has a patent; Its patent name is that (patent No. is a kind of automotive safety detecting device: ZL200820126588.5; The open date is: on December 24th, 2008), this device can effectively be protected driver's safety through the effect of sensor; The prevention fatigue driving, but do not detect to the variation of driver's condition in the mind.
Problems that these technology exist are exactly only to detect to certain independent index and do not consider driver's the health and the variation of condition in the mind, can not when driver condition changes, carry out corresponding action in response.And, the detection of health and condition in the mind is just become particularly important now because the influence of the seriousness of drunk driving and some burst diseases, so still have very big room for improvement.
Summary of the invention
The present invention seeks to drive and device is only detected to certain independent index and do not consider driver's the health and the variation of condition in the mind in order to solve existing safety; Can not when driver condition changes, carry out the problem of corresponding action in response, but the safe driving control monitor unit of a kind of monitoring driving person health and condition in the mind is provided.
But the safe driving control monitor unit of a kind of monitoring driving person health according to the invention and condition in the mind; It comprises neck pulse transducer, control and analysis processor, pressure sensor, gasbag pressure sensor, breath signal testing circuit, contact-free measurement of temperature sensor, alcohol concentration survey sensor, ear formula blood-pressure gage, alarm module and two measuring distance sensors
The neck pulse transducer is arranged on the below neck location of the backrest headrest of driver seat, is used to detect the pulse signal of chaufeur;
Pressure sensor is arranged on the seat cushion of driver seat, is used to detect chaufeur and whether moves in signal;
The gasbag pressure sensor has a plurality of, is separately positioned on bearing circle, brake and the shifter bar, is used for detecting respectively the power of holding or the foot-operated force signal of chaufeur;
The breath signal testing circuit be arranged on driver seat backrest with corresponding position, chaufeur thoracic cavity, be used to detect the breath signal of chaufeur;
The contact-free measurement of temperature sensor is arranged in the operator's compartment and the corresponding position of chaufeur forehead, is used to detect the body temperature signal of chaufeur;
The alcohol concentration survey sensor is arranged in the operator's compartment and the corresponding position of chaufeur head, is used to detect the alcohol concentration signal of chaufeur;
Ear formula blood-pressure gage is worn in the cochlea of chaufeur, is used to detect the blood pressure signal of chaufeur;
Two measuring distance sensors are separately positioned on the place ahead and the rear of car, be respectively applied for detect with car before the relative distance signal of vehicle behind vehicle and the car;
The signal of neck pulse transducer, pressure sensor, each gasbag pressure sensor, breath signal testing circuit, contact-free measurement of temperature sensor, alcohol concentration survey sensor, ear formula blood-pressure gage and two measuring distance sensor is all exported to control and analysis processor; Analyze by control and analysis processor; And the output analysis result is exported corresponding alarm message by alarm module according to analysis result to alarm module.
It also comprises execution module, and execution module is according to the promise treatment measures of driver safety of control and the analytical structure of analysis processor.
Advantage of the present invention:
When body state is normal with mood normal the time, detecting device continues to detect, and actuating unit is failure to actuate accordingly.And the variation according to signal draws judged result when detecting device records body abnormality or abnormal feeling, and carries out corresponding operation, like voice suggestion, and alarm sound etc.When situation is more extreme, can brake to forcing, avoid taking place traffic accident.
Solve the harm that pilot steering mood, the disease of bursting, excessive drinking and fatigue driving cause, alleviate and drive intensity and risk.Pure automatic steering bad adaptability, the problem that emergency reaction is untimely have been avoided simultaneously again.
Description of drawings
But Fig. 1 is the structural representation of the safe driving control monitor unit of monitoring driving person health according to the invention and condition in the mind;
Fig. 2 is that the neck pulse transducer is installed in the structural representation on the driver seat;
Fig. 3 is that the breath signal testing circuit is installed in the structural representation on the driver seat;
Fig. 4 is that ear formula blood-pressure gage is worn the scheme drawing on ear;
But the control block diagram of the safe driving control monitor unit of Fig. 5 is the monitoring driving person's health and condition in the mind.
The specific embodiment
The specific embodiment one: this embodiment is described below in conjunction with Fig. 1 to Fig. 5; But the safe driving control monitor unit of said a kind of monitoring driving person health of this embodiment and condition in the mind; It comprises neck pulse transducer 1, control and analysis processor 2, pressure sensor 3, gasbag pressure sensor 4, breath signal testing circuit 5, contact-free measurement of temperature sensor 6, alcohol concentration survey sensor 7, ear formula blood-pressure gage 8, alarm module 10 and two measuring distance sensors 9
Breath signal testing circuit 5 be arranged on driver seat backrest with corresponding position, chaufeur thoracic cavity, be used to detect the breath signal of chaufeur;
Contact-free measurement of temperature sensor 6 is arranged in the operator's compartment and the corresponding position of chaufeur forehead, is used to detect the body temperature signal of chaufeur;
Alcohol concentration survey sensor 7 is arranged in the operator's compartment and the corresponding position of chaufeur head, is used to detect the alcohol concentration signal of chaufeur;
Ear formula blood-pressure gage 8 is worn in the cochlea of chaufeur, is used to detect the blood pressure signal of chaufeur;
Two measuring distance sensors 9 are separately positioned on the place ahead and the rear of car, be respectively applied for detect with car before the relative distance signal of vehicle behind vehicle and the car;
The signal of neck pulse transducer 1, pressure sensor 3, each gasbag pressure sensor 4, breath signal testing circuit 5, contact-free measurement of temperature sensor 6, alcohol concentration survey sensor 7, ear formula blood-pressure gage 8 and two measuring distance sensor 9 detections is all exported to control and analysis processor 2; Analyze by control and analysis processor 2; And the output analysis result is exported corresponding alarm message by alarm module 10 according to analysis result to alarm module 10.
The specific embodiment two: this embodiment is described further embodiment one, and it also comprises execution module 11, and execution module 11 is according to the promise treatment measures of driver safety of control and the analytical structure of analysis processor 2.
The specific embodiment three: this embodiment is described further embodiment one; Control and analysis processor 2 comprise pulse signal change-over circuit 2-1, the first pressure signal change-over circuit 2-2, the second pressure signal change-over circuit 2-3, breath signal change-over circuit 2-4, body temperature signaling conversion circuit 2-5, gas concentration signal change-over circuit 2-6, blood pressure signal change-over circuit 2-7, optical signal change-over circuit 2-8 and microcontroller 2-9
Each gasbag pressure sensor 4 detects the power of holding or the foot-operated force signal of chaufeur and exports to the second pressure signal change-over circuit 2-3; The second pressure signal change-over circuit 2-3 has the multi-path signal input end; Realize the conversion of multichannel pressure signal, a plurality of signals that the said second pressure signal change-over circuit 2-3 will import convert electric pressure signal to and export to microcontroller 2-9;
Breath signal testing circuit 5 detects the breath signal of chaufeur and exports to breath signal change-over circuit 2-4, and breath signal change-over circuit 2-4 converts this signal to the breathing electric signal and exports to microcontroller 2-9;
Contact-free measurement of temperature sensor 6 detects the body temperature signal of chaufeur and exports to body temperature signaling conversion circuit 2-5, and body temperature signaling conversion circuit 2-5 converts this signal to temperature signal and exports to microcontroller 2-9;
Alcohol concentration survey sensor 7 detects the alcohol concentration signal of chaufeur and exports to gas concentration signal change-over circuit 2-6, and gas concentration signal change-over circuit 2-6 converts this signal to the alcohol concentration electric signal and exports to microcontroller 2-9;
Ear formula blood-pressure gage 8 detects the blood pressure signal of chaufeur and exports to blood pressure signal change-over circuit 2-7, and blood pressure signal change-over circuit 2-7 converts this signal to the blood pressure electric signal and exports to microcontroller 2-9;
Two measuring distance sensors 9 detect respectively with car before behind vehicle and the car vehicle range signal and export to optical signal change-over circuit 2-8; Optical signal change-over circuit 2-8 converts this signal apart from electric signal to exports to microcontroller 2-9, and said microcontroller 2-9 calculates the relative distance information that obtains vehicle behind corresponding and preceding vehicle of car and the car according to the range signal that receives continuously.
Working process:
When chaufeur entering automobile is taken seat; After opening the switch of safe driving control monitor unit; Each item measuring ability of this safe driving control monitor unit can start immediately; The device that contact-free measurement of temperature sensor 6 and alcohol concentration survey sensor 7 are housed can put down (be originally the inside above operator's compartment, prevent to run into when into car is sat down head), and the ear formula blood-pressure gage 8 that detects blood pressure is got on by chaufeur oneself band.Whether detect chaufeur through pressure sensor 3 earlier then is sitting on the seat; If chaufeur is taken; Then begin to carry out the detection of other parameters: neck pulse transducer 1 is through the detection pulse wave of beating of neck stalk artery, and contact-free measurement of temperature sensor 6 IR survey body temperatures change.Monitor and accomplished a measuring period in 5 minutes; These data are preserved; Proceed cycle detection then; Through interface each association of monitored person is transmitted on control and the analysis processor and to preserve, and every group of data are carried out the variation of analysis and judgement signal, judge the condition of human body and the variation tendency of condition in the mind.
When body state is normal with mood normal the time, detecting device continues to detect, and actuating unit is failure to actuate accordingly.And the variation according to signal draws judged result when detecting device records body abnormality or abnormal feeling, and carries out corresponding operation, like voice suggestion, and alarm sound etc.When situation is more extreme, can brake to forcing, avoid taking place traffic accident.
The signal of each sensor is transferred to control and analysis processor 2, by control and analysis processor 2 these signals is carried out comprehensive analyses and obtains optimum behavioral strategy under the current state.
The specific embodiment four: below in conjunction with Fig. 2 this embodiment is described, this embodiment is described further embodiment one, and neck pulse transducer 1 is selected the CPR34 pressure sensor for use.
Adopt the arteria carotis mensuration that chaufeur is detected in this embodiment, be fixed on the following position of headrest with a semi-round elasticity necklace exactly, above after human body is accomplished on the seat, neck being come to, then top air bag is carried out pneumatic compression.Utilize air sac pressure sensor wherein to be converted into electric signal to carotid arteriopalmus pressure, then electric signal is amplified, obtains corresponding signal data after the Filtering Processing.
The specific embodiment five: this embodiment is described further embodiment one, and pressure sensor 3 is selected the ST-31MPX2010GP pressure sensor for use.
It is to the anti-sleepy detection of human body that this embodiment adopts gasbag pressure sensor 4.Owing to reasons such as fatigue drivings, the behavior that the people can doze off when driving, this behavior is very big to the harm of safe driving, to avoid danger so must do relevant detection.To the sleepy detection of people, we adopt the detection of operation behavior, are employed on bearing circle, brake and the shifter bar to add air bag.Through the sampling of gasbag pressure metering system, handle grip and foot-operated power become gaseous tension through air bag, and gasbag pressure is measured and adopted the MEMS BARO sensor to be for conversion into electric signal to pressure.
The specific embodiment six: this embodiment is described below in conjunction with Fig. 3; This embodiment is described further embodiment one; Breath signal testing circuit 5 adopts the constant current source method that the impedance of torso model is measured; Then said impedance signal is handled amplification, obtain corresponding breathing electric signal.
Employing impedance method measurement breath signal in this embodiment, impedance method is to utilize the variation of human body part impedance to carry out the measurement of physiological parameter, diagnoses and guards with help, this method is simple, complete, nothing is created and can not produce any secondary action to patient.The thoracic cavity of human body is equivalent to one section volume conductor, and along with the motion of human body respiration, generation of gas changes in the thoracic cavity, and impedance is respective change also.Here adopt the constant current source method that the impedance of torso model is measured, then signal is handled amplification, obtain corresponding electric signal.
Referring to Fig. 3, breath signal testing circuit 5 is provided with two electrode 5-1, is realized measuring the thoracic impedance of chaufeur by these two electrode 5-1.
The specific embodiment seven: this embodiment is described further embodiment one, and contact-free measurement of temperature sensor 6 adopts TS105 series infrared temperature sensor.
Additional detector before operator seat, there is the temperature sensor for human body probe the inside, adopts non-contacting infrared temperature sensor that the temperature of human body forehead is measured, and obtains corresponding signal, carries out Treatment Analysis then and obtains final signal.
The specific embodiment eight: this embodiment is described further embodiment one, and alcohol concentration survey sensor 7 adopts VES80 series alcohol concentration sensor.
Additional detector before operator seat, there is the alcohol concentration sensor probe the inside, can carry out the measurement of alcohol concentration to the gas that the human body exhalation comes, and enough converts corresponding chemical gas concentration into electric signal then and handles.
The specific embodiment nine: below in conjunction with Fig. 4 this embodiment is described, this embodiment is described further embodiment one, and ear formula blood-pressure gage 8 is selected the smart amount of MEAS-electronics-1510 non-invasive blood pressure sensor for use.
The measurement of blood pressure is because the particular surroundings of vehicle drive, thus can not as normally, carry out the measurement of blood pressure with cuff, and also the dynamic monitoring effect is also bad.Here we adopt ear formula blood-pressure gage 8 to measure; This method of measurement is unlike common blood pressure measuring method; But the hoop bag is installed at external ear and periphery thereof; Superficial temporal artery and periphery thereof with the compressing of hoop bag are obtained pulse signal, measure the value corresponding to the prearranged signals of band pressure inside value with non-invasive blood pressure sensor then.Can, the people realize detection of dynamic and analysis eaily when driving by this method.
The specific embodiment ten: this embodiment is described further embodiment one, and measuring distance sensor 9 uses URM37 type ultrasonic transduter.
This is the detection to the environmental hazard situation, comprises that automobile front and back and side direction have or not closely vehicle, and the relative velocity of associated vehicle and this car.Main employing ultrasonic wave measuring method is adjusted the distance and speed is measured, and obtains corresponding signal.
Claims (10)
1. but the safe driving control monitor unit of monitoring driving person health and condition in the mind; It is characterized in that; It comprises neck pulse transducer (1), control and analysis processor (2), pressure sensor (3), gasbag pressure sensor (4), breath signal testing circuit (5), contact-free measurement of temperature sensor (6), alcohol concentration survey sensor (7), ear formula blood-pressure gage (8), alarm module (10) and two measuring distance sensors (9)
Neck pulse transducer (1) is arranged on the below neck location of the backrest headrest of driver seat, is used to detect the pulse signal of chaufeur;
Pressure sensor (3) is arranged on the seat cushion of driver seat, is used to detect chaufeur and whether moves in signal;
Gasbag pressure sensor (4) has a plurality of, is separately positioned on bearing circle, brake and the shifter bar, is used for detecting respectively the power of holding or the foot-operated force signal of chaufeur;
Breath signal testing circuit (5) be arranged on driver seat backrest with corresponding position, chaufeur thoracic cavity, be used to detect the breath signal of chaufeur;
Contact-free measurement of temperature sensor (6) is arranged in the operator's compartment and the corresponding position of chaufeur forehead, is used to detect the body temperature signal of chaufeur;
Alcohol concentration survey sensor (7) is arranged in the operator's compartment and the corresponding position of chaufeur head, is used to detect the alcohol concentration signal of chaufeur;
Ear formula blood-pressure gage (8) is worn in the cochlea of chaufeur, is used to detect the blood pressure signal of chaufeur;
Two measuring distance sensors (9) are separately positioned on the place ahead and the rear of car, be respectively applied for detect with car before the relative distance signal of vehicle behind vehicle and the car;
The signal that neck pulse transducer (1), pressure sensor (3), each gasbag pressure sensor (4), breath signal testing circuit (5), contact-free measurement of temperature sensor (6), alcohol concentration survey sensor (7), ear formula blood-pressure gage (8) and two measuring distance sensors (9) detect is all exported to control and analysis processor (2); Analyze by control and analysis processor (2); And the output analysis result is exported corresponding alarm message by alarm module (10) according to analysis result to alarm module (10).
2. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind; It is characterized in that; It also comprises execution module (11), and execution module (11) is according to the promise treatment measures of driver safety of control and the analytical structure of analysis processor (2).
3. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind; It is characterized in that; Control and analysis processor (2) comprise pulse signal change-over circuit (2-1); The first pressure signal change-over circuit (2-2); The second pressure signal change-over circuit (2-3); Breath signal change-over circuit (2-4); Body temperature signaling conversion circuit (2-5); Gas concentration signal change-over circuit (2-6); Blood pressure signal change-over circuit (2-7); Optical signal change-over circuit (2-8) and microcontroller (2-9)
Neck pulse transducer (1) detects the pulse signal of chaufeur and exports to pulse signal change-over circuit (2-1), and pulse signal change-over circuit (2-1) converts this signal to the pulse electric signal and exports to microcontroller (2-9);
Pressure sensor (3) detects chaufeur and whether moves in signal and export to the first pressure signal change-over circuit (2-2), and the first pressure signal change-over circuit (2-2) converts this signal to electric pressure signal and exports to microcontroller (2-9);
Each gasbag pressure sensor (4) detects the power of holding or the foot-operated force signal of chaufeur and exports to the second pressure signal change-over circuit (2-3); The second pressure signal change-over circuit (2-3) has the multi-path signal input end; Realize the conversion of multichannel pressure signal, a plurality of signals that the said second pressure signal change-over circuit (2-3) will be imported convert electric pressure signal to and export to microcontroller (2-9);
Breath signal testing circuit (5) detects the breath signal of chaufeur and exports to breath signal change-over circuit (2-4), and breath signal change-over circuit (2-4) converts this signal to the breathing electric signal and exports to microcontroller (2-9);
Contact-free measurement of temperature sensor (6) detects the body temperature signal of chaufeur and exports to body temperature signaling conversion circuit (2-5), and body temperature signaling conversion circuit (2-5) converts this signal to temperature signal and exports to microcontroller (2-9);
Alcohol concentration survey sensor (7) detects the alcohol concentration signal of chaufeur and exports to gas concentration signal change-over circuit (2-6), and gas concentration signal change-over circuit (2-6) converts this signal to the alcohol concentration electric signal and exports to microcontroller (2-9);
Ear formula blood-pressure gage (8) detects the blood pressure signal of chaufeur and exports to blood pressure signal change-over circuit (2-7), and blood pressure signal change-over circuit (2-7) converts this signal to the blood pressure electric signal and exports to microcontroller (2-9);
Two measuring distance sensors (9) detect respectively with car before behind vehicle and the car vehicle range signal and export to optical signal change-over circuit (2-8); Optical signal change-over circuit (2-8) converts this signal apart from electric signal to exports to microcontroller (2-9), and said microcontroller (2-9) calculates the relative distance information that obtains vehicle behind corresponding and preceding vehicle of car and the car according to the range signal that receives continuously.
4. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind, it is characterized in that neck pulse transducer (1) is selected the CPR34 pressure sensor for use.
5. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind, it is characterized in that pressure sensor (3) is selected ST-31 MPX2010GP pressure sensor for use; Gasbag pressure sensor (4) is selected ST-33 minute-pressure atmospheric pressure sensor for use.
6. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind; It is characterized in that; Breath signal testing circuit (5) adopts the constant current source method that the impedance of torso model is measured; Then said impedance signal is handled amplification, obtain corresponding breathing electric signal.
7. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind, contact-free measurement of temperature sensor (6) adopts TS105 series infrared temperature sensor.
8. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind, alcohol concentration survey sensor (7) adopts VES80 series alcohol concentration sensor.
9. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind, ear formula blood-pressure gage (8) is selected the smart amount of MEAS-electronics-1510 non-invasive blood pressure sensor for use.
10. but according to the safe driving control monitor unit of said a kind of monitoring driving person health of claim 1 and condition in the mind, measuring distance sensor (9) uses URM37 type ultrasonic transduter.
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